diff --git a/Makefile b/Makefile
index d340f67..5bc8076 100644
--- a/Makefile
+++ b/Makefile
@@ -30,7 +30,8 @@ HOEDOWN_SRC=\
 	src/autolink.o \
 	src/escape.o \
 	src/html.o \
-	src/html_smartypants.o \
+	src/html_blocks.o \
+	src/html_smartypants.o
 
 all:		libhoedown.so hoedown smartypants html_blocks
 
@@ -53,10 +54,9 @@ smartypants: examples/smartypants.o $(HOEDOWN_SRC)
 	$(CC) $(LDFLAGS) $^ -o $@
 
 # perfect hashing
-html_blocks: src/html_blocks.h
 
-src/html_blocks.h: html_block_names.txt
-	gperf -N hoedown_find_block_tag -H hash_block_tag -C -c -E -S 1 --ignore-case $^ > $@
+src/html_blocks.c: html_block_names.gperf
+	gperf -L ANSI-C -N hoedown_find_block_tag -c -C -E -S 1 --ignore-case -m100 $^ > $@
 
 test: hoedown
 	perl test/MarkdownTest_1.0.3/MarkdownTest.pl \
diff --git a/html_block_names.txt b/html_block_names.gperf
similarity index 97%
rename from html_block_names.txt
rename to html_block_names.gperf
index a41d7d1..a316d5c 100644
--- a/html_block_names.txt
+++ b/html_block_names.gperf
@@ -1,4 +1,3 @@
-##
 p
 dl
 h1
@@ -15,11 +14,11 @@ ins
 pre
 form
 math
+style
 table
 figure
 iframe
 script
-style
 fieldset
 noscript
 blockquote
diff --git a/src/html_blocks.h b/src/html_blocks.c
similarity index 76%
rename from src/html_blocks.h
rename to src/html_blocks.c
index 584f3ba..f5e9dce 100644
--- a/src/html_blocks.h
+++ b/src/html_blocks.c
@@ -1,5 +1,5 @@
-/* C code produced by gperf version 3.0.3 */
-/* Command-line: gperf -N hoedown_find_block_tag -H hash_block_tag -C -c -E -P -S 1 --ignore-case html_block_names.txt  */
+/* ANSI-C code produced by gperf version 3.0.3 */
+/* Command-line: gperf -L ANSI-C -N hoedown_find_block_tag -c -C -E -S 1 --ignore-case -m100 html_block_names.gperf  */
 /* Computed positions: -k'1-2' */
 
 #if !((' ' == 32) && ('!' == 33) && ('"' == 34) && ('#' == 35) \
@@ -26,10 +26,10 @@
       && ('w' == 119) && ('x' == 120) && ('y' == 121) && ('z' == 122) \
       && ('{' == 123) && ('|' == 124) && ('}' == 125) && ('~' == 126))
 /* The character set is not based on ISO-646.  */
-error "gperf generated tables don't work with this execution character set. Please report a bug to <bug-gnu-gperf@gnu.org>."
+#error "gperf generated tables don't work with this execution character set. Please report a bug to <bug-gnu-gperf@gnu.org>."
 #endif
 
-/* maximum key range = 37, duplicates = 0 */
+/* maximum key range = 24, duplicates = 0 */
 
 #ifndef GPERF_DOWNCASE
 #define GPERF_DOWNCASE 1
@@ -59,10 +59,7 @@ static unsigned char gperf_downcase[256] =
 #ifndef GPERF_CASE_STRNCMP
 #define GPERF_CASE_STRNCMP 1
 static int
-gperf_case_strncmp (s1, s2, n)
-     register const char *s1;
-     register const char *s2;
-     register unsigned int n;
+gperf_case_strncmp (register const char *s1, register const char *s2, register unsigned int n)
 {
   for (; n > 0;)
     {
@@ -87,38 +84,36 @@ inline
 #endif
 #endif
 static unsigned int
-hash_block_tag (str, len)
-     register const char *str;
-     register unsigned int len;
+hash (register const char *str, register unsigned int len)
 {
   static const unsigned char asso_values[] =
     {
-      38, 38, 38, 38, 38, 38, 38, 38, 38, 38,
-      38, 38, 38, 38, 38, 38, 38, 38, 38, 38,
-      38, 38, 38, 38, 38, 38, 38, 38, 38, 38,
-      38, 38, 38, 38, 38, 38, 38, 38, 38, 38,
-      38, 38, 38, 38, 38, 38, 38, 38, 38, 38,
-       8, 30, 25, 20, 15, 10, 38, 38, 38, 38,
-      38, 38, 38, 38, 38, 38,  0, 38,  0, 38,
-       5,  5,  5, 15,  0, 38, 38,  0, 15, 10,
-       0, 38, 38, 15,  0,  5, 38, 38, 38, 38,
-      38, 38, 38, 38, 38, 38, 38, 38,  0, 38,
-       0, 38,  5,  5,  5, 15,  0, 38, 38,  0,
-      15, 10,  0, 38, 38, 15,  0,  5, 38, 38,
-      38, 38, 38, 38, 38, 38, 38, 38, 38, 38,
-      38, 38, 38, 38, 38, 38, 38, 38, 38, 38,
-      38, 38, 38, 38, 38, 38, 38, 38, 38, 38,
-      38, 38, 38, 38, 38, 38, 38, 38, 38, 38,
-      38, 38, 38, 38, 38, 38, 38, 38, 38, 38,
-      38, 38, 38, 38, 38, 38, 38, 38, 38, 38,
-      38, 38, 38, 38, 38, 38, 38, 38, 38, 38,
-      38, 38, 38, 38, 38, 38, 38, 38, 38, 38,
-      38, 38, 38, 38, 38, 38, 38, 38, 38, 38,
-      38, 38, 38, 38, 38, 38, 38, 38, 38, 38,
-      38, 38, 38, 38, 38, 38, 38, 38, 38, 38,
-      38, 38, 38, 38, 38, 38, 38, 38, 38, 38,
-      38, 38, 38, 38, 38, 38, 38, 38, 38, 38,
-      38, 38, 38, 38, 38, 38, 38
+      25, 25, 25, 25, 25, 25, 25, 25, 25, 25,
+      25, 25, 25, 25, 25, 25, 25, 25, 25, 25,
+      25, 25, 25, 25, 25, 25, 25, 25, 25, 25,
+      25, 25, 25, 25, 25, 25, 25, 25, 25, 25,
+      25, 25, 25, 25, 25, 25, 25, 25, 25, 25,
+      22, 21, 19, 18, 16,  0, 25, 25, 25, 25,
+      25, 25, 25, 25, 25, 25,  1, 25,  0, 25,
+       1,  0,  0, 13,  0, 25, 25, 11,  2,  1,
+       0, 25, 25,  5,  0,  2, 25, 25, 25, 25,
+      25, 25, 25, 25, 25, 25, 25, 25,  1, 25,
+       0, 25,  1,  0,  0, 13,  0, 25, 25, 11,
+       2,  1,  0, 25, 25,  5,  0,  2, 25, 25,
+      25, 25, 25, 25, 25, 25, 25, 25, 25, 25,
+      25, 25, 25, 25, 25, 25, 25, 25, 25, 25,
+      25, 25, 25, 25, 25, 25, 25, 25, 25, 25,
+      25, 25, 25, 25, 25, 25, 25, 25, 25, 25,
+      25, 25, 25, 25, 25, 25, 25, 25, 25, 25,
+      25, 25, 25, 25, 25, 25, 25, 25, 25, 25,
+      25, 25, 25, 25, 25, 25, 25, 25, 25, 25,
+      25, 25, 25, 25, 25, 25, 25, 25, 25, 25,
+      25, 25, 25, 25, 25, 25, 25, 25, 25, 25,
+      25, 25, 25, 25, 25, 25, 25, 25, 25, 25,
+      25, 25, 25, 25, 25, 25, 25, 25, 25, 25,
+      25, 25, 25, 25, 25, 25, 25, 25, 25, 25,
+      25, 25, 25, 25, 25, 25, 25, 25, 25, 25,
+      25, 25, 25, 25, 25, 25, 25
     };
   register int hval = (int)len;
 
@@ -141,9 +136,7 @@ __attribute__ ((__gnu_inline__))
 #endif
 #endif
 const char *
-hoedown_find_block_tag (str, len)
-     register const char *str;
-     register unsigned int len;
+hoedown_find_block_tag (register const char *str, register unsigned int len)
 {
   enum
     {
@@ -151,12 +144,12 @@ hoedown_find_block_tag (str, len)
       MIN_WORD_LENGTH = 1,
       MAX_WORD_LENGTH = 10,
       MIN_HASH_VALUE = 1,
-      MAX_HASH_VALUE = 37
+      MAX_HASH_VALUE = 24
     };
 
   if (len <= MAX_WORD_LENGTH && len >= MIN_WORD_LENGTH)
     {
-      register int key = hash_block_tag (str, len);
+      register int key = hash (str, len);
 
       if (key <= MAX_HASH_VALUE && key >= MIN_HASH_VALUE)
         {
@@ -168,74 +161,74 @@ hoedown_find_block_tag (str, len)
                 resword = "p";
                 goto compare;
               case 1:
-                resword = "dl";
+                resword = "h6";
                 goto compare;
               case 2:
                 resword = "div";
                 goto compare;
               case 3:
-                resword = "math";
+                resword = "del";
                 goto compare;
               case 4:
+                resword = "form";
+                goto compare;
+              case 5:
                 resword = "table";
                 goto compare;
               case 6:
-                resword = "ul";
-                goto compare;
-              case 7:
-                resword = "del";
-                goto compare;
-              case 8:
-                resword = "form";
-                goto compare;
-              case 9:
-                resword = "blockquote";
-                goto compare;
-              case 10:
                 resword = "figure";
                 goto compare;
-              case 11:
-                resword = "ol";
-                goto compare;
-              case 12:
-                resword = "fieldset";
-                goto compare;
-              case 14:
-                resword = "h1";
-                goto compare;
-              case 16:
-                resword = "h6";
-                goto compare;
-              case 17:
+              case 7:
                 resword = "pre";
                 goto compare;
-              case 20:
-                resword = "script";
+              case 8:
+                resword = "fieldset";
                 goto compare;
-              case 21:
-                resword = "h5";
-                goto compare;
-              case 22:
+              case 9:
                 resword = "noscript";
                 goto compare;
-              case 24:
+              case 10:
+                resword = "script";
+                goto compare;
+              case 11:
                 resword = "style";
                 goto compare;
-              case 25:
-                resword = "iframe";
+              case 12:
+                resword = "dl";
                 goto compare;
-              case 26:
-                resword = "h4";
+              case 13:
+                resword = "ol";
                 goto compare;
-              case 27:
+              case 14:
+                resword = "ul";
+                goto compare;
+              case 15:
+                resword = "math";
+                goto compare;
+              case 16:
                 resword = "ins";
                 goto compare;
-              case 31:
+              case 17:
+                resword = "h5";
+                goto compare;
+              case 18:
+                resword = "iframe";
+                goto compare;
+              case 19:
+                resword = "h4";
+                goto compare;
+              case 20:
                 resword = "h3";
                 goto compare;
-              case 36:
+              case 21:
+                resword = "blockquote";
+                goto compare;
+              case 22:
                 resword = "h2";
                 goto compare;
+              case 23:
+                resword = "h1";
+                goto compare;
             }
           return 0;
         compare:
diff --git a/src/markdown.c b/src/markdown.c
index dc4370a..61d79a9 100644
--- a/src/markdown.c
+++ b/src/markdown.c
@@ -19,10 +19,7 @@
 
 #define MKD_LI_END 8	/* internal list flag */
 
-#define gperf_case_strncmp(s1, s2, n) strncasecmp(s1, s2, n)
-#define GPERF_DOWNCASE 1
-#define GPERF_CASE_STRNCMP 1
-#include "html_blocks.h"
+const char *hoedown_find_block_tag(const char *str, unsigned int len);
 
 /***************
  * LOCAL TYPES *