diff --git a/guacamole-common-js/src/main/resources/guacamole.js b/guacamole-common-js/src/main/resources/guacamole.js
index 43bd16520..204b606d2 100644
--- a/guacamole-common-js/src/main/resources/guacamole.js
+++ b/guacamole-common-js/src/main/resources/guacamole.js
@@ -841,8 +841,11 @@ Guacamole.Client = function(tunnel) {
 
     };
 
-};
+    guac_client.getScale = function() {
+        return displayScale;
+    };
 
+};
 
 /**
  * Simple container for Guacamole.Layer, allowing layers to be easily