diff --git a/lib/scripts/edit.js b/lib/scripts/edit.js
index 33a8f61b587a6b8efca8ce40c032d5a7ec45344c..5a5e829bd9d6359dbea2aa95b91a8990a8dfa43d 100644
--- a/lib/scripts/edit.js
+++ b/lib/scripts/edit.js
@@ -40,6 +40,8 @@ function createToolButton(icon,label,key,id,classname){
         icon = DOKU_BASE + 'lib/images/toolbar/' + icon;
     }
     $ico.attr('src', icon);
+    $ico.attr('width', 16);
+    $ico.attr('height', 16);
     $btn.append($ico);
 
     // we have to return a DOM object (for compatibility reasons)