diff --git a/src/toolgroups/MenuToolGroup.js b/src/toolgroups/MenuToolGroup.js
index <HASH>..<HASH> 100644
--- a/src/toolgroups/MenuToolGroup.js
+++ b/src/toolgroups/MenuToolGroup.js
@@ -53,5 +53,5 @@ OO.ui.MenuToolGroup.prototype.onUpdateState = function () {
 		}
 	}
 
-	this.setLabel( labelTexts.join( ', ' ) );
+	this.setLabel( labelTexts.join( ', ' ) || ' ' );
 };
Force visible label for MenuToolGroups

A completely emptry string hides the label, which makes the
centre of the MenuToolGroup unclickable when empty.

Change-Id: I<I>f9e4ec<I>b<I>ad7ae<I>df3d4c5c1b3