diff --git a/source/blender/editors/interface/interface_style.c b/source/blender/editors/interface/interface_style.c
index 938fb27e017..92d02ff3dc2 100644
--- a/source/blender/editors/interface/interface_style.c
+++ b/source/blender/editors/interface/interface_style.c
@@ -42,6 +42,7 @@
 #include "BLI_listbase.h"
 #include "BLI_rect.h"
 #include "BLI_string.h"
+#include "BLI_utildefines.h"
 
 #include "BKE_global.h"