diff --git a/src/lib/lib.mak b/src/lib/lib.mak
index d8144552206..7e4218f4a66 100644
--- a/src/lib/lib.mak
+++ b/src/lib/lib.mak
@@ -185,7 +185,6 @@ ZLIBOBJS = \
 	$(LIBOBJ)/zlib/compress.o \
 	$(LIBOBJ)/zlib/crc32.o \
 	$(LIBOBJ)/zlib/deflate.o \
-	$(LIBOBJ)/zlib/gzio.o \
 	$(LIBOBJ)/zlib/inffast.o \
 	$(LIBOBJ)/zlib/inflate.o \
 	$(LIBOBJ)/zlib/infback.o \