diff --git a/windows/container.c b/windows/container.c
index 9fc59e6e..e163b445 100644
--- a/windows/container.c
+++ b/windows/container.c
@@ -53,6 +53,7 @@ static HRESULT resize(uiContainer *cc, RECT *r)
 	d.yPadding = uiDlgUnitsToY(winYPadding, sys.baseY);
 	d.sys = &sys;
 	uiContainerResizeChildren(cc, r->left, r->top, r->right - r->left, r->bottom - r->top, &d);
+	return S_OK;
 }
 
 static LRESULT CALLBACK containerWndProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)