1 files changed, 1 insertions, 1 deletions
diff --git a/vcl/inc/image.h b/vcl/inc/image.h
index 873fc98432dd..1cb0c43cdd72 100644
--- a/vcl/inc/image.h
+++ b/vcl/inc/image.h
@@ -28,7 +28,7 @@
 struct ImplImage
 {
     BitmapChecksum maBitmapChecksum;
-    BitmapEx maBitmapEx;
+    BitmapEx const maBitmapEx;
     BitmapEx maDisabledBitmapEx;
 
     ImplImage(const BitmapEx& rBitmapEx);