diff --git a/Formula/dasm.rb b/Formula/dasm.rb
index 427e2fc82b..e13e764fce 100644
--- a/Formula/dasm.rb
+++ b/Formula/dasm.rb
@@ -7,6 +7,6 @@ class Dasm < Formula
 
   def install
     system "make"
-    prefix.install Dir['bin']
+    prefix.install 'bin', 'doc'
   end
 end