diff --git a/src/apps/deskcalc/CalcView.cpp b/src/apps/deskcalc/CalcView.cpp
index 837a955fc3..034e5132a2 100644
--- a/src/apps/deskcalc/CalcView.cpp
+++ b/src/apps/deskcalc/CalcView.cpp
@@ -1173,6 +1173,7 @@ CalcView::_ShowKeypad(bool show)
 			window->ResizeTo(fWidth, height);
 		} else
 			ResizeTo(fWidth, height);
+		Invalidate();
 	}
 }