diff --git a/src/plugins/platforms/cocoa/qiosurfacegraphicsbuffer.h b/src/plugins/platforms/cocoa/qiosurfacegraphicsbuffer.h
index 5d4b6d6a71..cc7193d8b7 100644
--- a/src/plugins/platforms/cocoa/qiosurfacegraphicsbuffer.h
+++ b/src/plugins/platforms/cocoa/qiosurfacegraphicsbuffer.h
@@ -43,6 +43,7 @@
 #include <qpa/qplatformgraphicsbuffer.h>
 #include <private/qcore_mac_p.h>
 
+#include <CoreGraphics/CGColorSpace.h>
 #include <IOSurface/IOSurface.h>
 
 QT_BEGIN_NAMESPACE