diff --git a/source/gameengine/GamePlayer/common/Makefile b/source/gameengine/GamePlayer/common/Makefile
index 660858b6151..5b61fb4f902 100644
--- a/source/gameengine/GamePlayer/common/Makefile
+++ b/source/gameengine/GamePlayer/common/Makefile
@@ -54,6 +54,7 @@ CPPFLAGS += -I$(NAN_MOTO)/include
 CPPFLAGS += -I$(NAN_SUMO)/include
 CPPFLAGS += -I$(NAN_SOLID)/include
 CPPFLAGS += -I$(NAN_PNG)/include
+CPPFLAGS += -I$(NAN_ZLIB)/include
 CPPFLAGS += -I$(NAN_PYTHON)/include/python$(NAN_PYTHON_VERSION)
 
 CPPFLAGS += -I$(NAN_BMFONT)/include