diff --git a/Userland/Libraries/LibGUI/Forward.h b/Userland/Libraries/LibGUI/Forward.h
index 1bec505b86..8e0bd22223 100644
--- a/Userland/Libraries/LibGUI/Forward.h
+++ b/Userland/Libraries/LibGUI/Forward.h
@@ -34,6 +34,7 @@ class HorizontalBoxLayout;
 class HorizontalSlider;
 class Icon;
 class IconView;
+class ImageWidget;
 class JsonArrayModel;
 class KeyEvent;
 class Label;