diff --git a/source/blender/imbuf/intern/readimage.cc b/source/blender/imbuf/intern/readimage.cc
index ca3f4e13c23..817bfdab86d 100644
--- a/source/blender/imbuf/intern/readimage.cc
+++ b/source/blender/imbuf/intern/readimage.cc
@@ -17,6 +17,7 @@
 #include "BLI_mmap.h"
 #include "BLI_path_utils.hh" /* For assertions. */
 #include "BLI_string.h"
+#include "BLI_winstuff.h"
 #include <cstdlib>
 
 #include "IMB_allocimbuf.hh"