diff --git a/common/rfb/Makefile.in b/common/rfb/Makefile.in
index 835e188..ebaf86d 100644
--- a/common/rfb/Makefile.in
+++ b/common/rfb/Makefile.in
@@ -66,7 +66,7 @@
 
 OBJS = d3des.o $(CXXSRCS:.cxx=.o)
 
-DIR_CPPFLAGS = -I$(top_srcdir) @ZLIB_INCLUDE@ @JPEG_INCLUDE@ @VSNPRINTF_DEFINE@
+DIR_CPPFLAGS = -I$(top_srcdir) @JPEG_INCLUDE@ @VSNPRINTF_DEFINE@
 
 library = librfb.a