diff --git a/src/tests/kits/interface/layout/widget_layout_test/tests/ControlTest.h b/src/tests/kits/interface/layout/widget_layout_test/tests/ControlTest.h
index abb3721a40..d330e428d4 100644
--- a/src/tests/kits/interface/layout/widget_layout_test/tests/ControlTest.h
+++ b/src/tests/kits/interface/layout/widget_layout_test/tests/ControlTest.h
@@ -10,6 +10,7 @@
 
 
 class BButton;
+class BControl;
 class BFont;
 class LabeledCheckBox;
 class View;