diff --git a/src/plugins/platforms/cocoa/qiosurfacegraphicsbuffer.h b/src/plugins/platforms/cocoa/qiosurfacegraphicsbuffer.h
index e070ba97..07c75b04 100644
--- a/src/plugins/platforms/cocoa/qiosurfacegraphicsbuffer.h
+++ b/src/plugins/platforms/cocoa/qiosurfacegraphicsbuffer.h
@@ -40,6 +40,7 @@
 #ifndef QIOSURFACEGRAPHICSBUFFER_H
 #define QIOSURFACEGRAPHICSBUFFER_H
 
+#include <CoreGraphics/CGColorSpace.h>
 #include <qpa/qplatformgraphicsbuffer.h>
 #include <private/qcore_mac_p.h>