diff --git a/source/blender/blenlib/intern/arithb.c b/source/blender/blenlib/intern/arithb.c
index caa4771ff4b..f73005dcd9b 100644
--- a/source/blender/blenlib/intern/arithb.c
+++ b/source/blender/blenlib/intern/arithb.c
@@ -58,6 +58,10 @@
 #include <unistd.h>
 #endif
 
+#ifdef WIN32
+#include "BLI_winstuff.h"
+#endif
+
 #include <stdio.h>
 #include "BLI_arithb.h"