diff --git a/src/Makefile b/src/Makefile
index 81ea6b8..7ab5f13 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -67,15 +67,12 @@ INSTALL = install
 DESTDIR ?=
 
 HOSTARCH = $(firstword $(subst -, ,$(shell $(CC) -dumpmachine)))
-ifeq ($(filter-out %64 %64be %64eb %64le %64el s390x, $(HOSTARCH)),)
-	LIBSUBDIR := lib64
-else
-	LIBSUBDIR := lib
-endif
+LIBSUBDIR := lib
 
 # By default let the pc file itself use ${prefix} in includedir/libdir so that
 # the prefix can be overridden at runtime (eg: --define-prefix)
 ifndef LIBDIR
+	PREFIX_PC := /usr
 	LIBDIR_PC := $$\{prefix\}/$(LIBSUBDIR)
 else
 	LIBDIR_PC := $(LIBDIR)
@@ -106,7 +103,7 @@ $(OBJDIR)/libbpf.so.$(LIBBPF_VERSION): $(SHARED_OBJS)
 		  $^ $(ALL_LDFLAGS) -o $@
 
 $(OBJDIR)/libbpf.pc: force
-	$(Q)sed -e "s|@PREFIX@|$(PREFIX)|" \
+	$(Q)sed -e "s|@PREFIX@|$(PREFIX_PC)|" \
 		-e "s|@LIBDIR@|$(LIBDIR_PC)|" \
 		-e "s|@VERSION@|$(LIBBPF_VERSION)|" \
 		< libbpf.pc.template > $@
diff --git a/src/libbpf.pc.template b/src/libbpf.pc.template
index b45ed53..fe6ddde 100644
--- a/src/libbpf.pc.template
+++ b/src/libbpf.pc.template
@@ -7,6 +7,6 @@ includedir=${prefix}/include
 Name: libbpf
 Description: BPF library
 Version: @VERSION@
-Libs: -L${libdir} -lbpf
+Libs: -L${libdir} -lbpf -lz
 Requires.private: libelf zlib
 Cflags: -I${includedir}