diff --git a/common/zlib/Makefile.am b/common/zlib/Makefile.am
index 5da5a6e..4c51d2b 100644
--- a/common/zlib/Makefile.am
+++ b/common/zlib/Makefile.am
@@ -1,7 +1,6 @@
 noinst_LTLIBRARIES = libz.la
 
-libz_la_SOURCES = adler32.c compress.c crc32.c deflate.c deflate.h example.c \
+libz_la_SOURCES = adler32.c compress.c crc32.c deflate.c deflate.h \
 	gzio.c infblock.c infblock.h infcodes.c infcodes.h inffast.c \
 	inffast.h inffixed.h inflate.c inftrees.c inftrees.h infutil.c \
-	infutil.h maketree.c minigzip.c trees.c trees.h uncompr.c zconf.h \
-	zlib.h zutil.c zutil.h
+	infutil.h trees.c trees.h uncompr.c zconf.h zlib.h zutil.c zutil.h