diff --git a/src/input/keyboard/KeyboardPlugin.js b/src/input/keyboard/KeyboardPlugin.js
index 1d96677d2..d319864dd 100644
--- a/src/input/keyboard/KeyboardPlugin.js
+++ b/src/input/keyboard/KeyboardPlugin.js
@@ -344,7 +344,11 @@ var KeyboardPlugin = new Class({
 
             for (var i = 0; i < keys.length; i++)
             {
-                output[keys[i]] = this.addKey(keys[i]);
+                var currentKey = keys[i].trim();
+                if (currentKey)
+                {
+                    output[currentKey] = this.addKey(currentKey);
+                }
             }
         }
         else