diff --git a/UI/window-basic-main.hpp b/UI/window-basic-main.hpp
index 04453fecf..da1faaa01 100644
--- a/UI/window-basic-main.hpp
+++ b/UI/window-basic-main.hpp
@@ -366,6 +366,8 @@ private slots:
 		bool showing = isVisible();
 		if (disableHiding && showing)
 			return;
+		if (showing)
+			CloseDialogs();
 		SetShowing(!showing);
 	}