diff --git a/core/js/Toolbar.js b/core/js/Toolbar.js
index 202fd89..c7e8d8f 100644
--- a/core/js/Toolbar.js
+++ b/core/js/Toolbar.js
@@ -35,6 +35,7 @@ config.macros.toolbar.createCommand = function(place,commandName,tiddler,classNa
 			var btn = createTiddlyButton(null,text,tooltip,cmd);
 			btn.setAttribute("commandName",commandName);
 			btn.setAttribute("tiddler",tiddler.title);
+			addClass(btn,"command_" + commandName);
 			if(className)
 				addClass(btn,className);
 			place.appendChild(btn);