diff --git a/examples/ThirdPartyLibs/zlib/gzguts.h b/examples/ThirdPartyLibs/zlib/gzguts.h
index 9977748b7..690cd1057 100644
--- a/examples/ThirdPartyLibs/zlib/gzguts.h
+++ b/examples/ThirdPartyLibs/zlib/gzguts.h
@@ -20,7 +20,9 @@
 
 #include <stdio.h>
 #include "zlib.h"
+#ifndef _WIN32
 #include <unistd.h>
+#endif //_WIN32
 #ifdef STDC
 #include <string.h>
 #include <stdlib.h>