--- fstapi.h
+++ fstapi.h
@@ -33,11 +33,12 @@ extern "C" {
 #include <stdlib.h>
 #include <string.h>
 #include <ctype.h>
-#include <zlib.h>
 #include <inttypes.h>
 #if defined(_MSC_VER)
+#include "libs/zlib/zlib.h"
 #include "fst_win_unistd.h"
 #else
+#include <zlib.h>
 #include <unistd.h>
 #endif
 #include <time.h>
