diff --git a/Makefile b/Makefile
index de10d4c..4973c9e 100644
--- a/Makefile
+++ b/Makefile
@@ -113,7 +113,7 @@ ifeq ($(patsubst Darwin%,Darwin,$(SYSTEM)), Darwin)
 NAME = GLEW
 CC = cc
 LD = cc
-CFLAGS.EXTRA = -dynamic -I/usr/X11R6/include
+CFLAGS.EXTRA = -no-cpp-precomp -dynamic -I/usr/X11R6/include
 LDFLAGS.SO = -dynamiclib
 LDFLAGS.EXTRA = -L/usr/X11R6/lib
 ifneq (undefined, $(origin GLEW_APPLE_GLX))