diff --git a/lib/OpenLayers/Util.js b/lib/OpenLayers/Util.js
index bf202268f9..b748d84118 100644
--- a/lib/OpenLayers/Util.js
+++ b/lib/OpenLayers/Util.js
@@ -1184,9 +1184,9 @@ OpenLayers.Util.getResolutionFromScale = function (scale, units) {
         units = "degrees";
     }
 
-    normScale = OpenLayers.Util.normalizeScale(scale);
+    var normScale = OpenLayers.Util.normalizeScale(scale);
 
     var resolution = 1 / (normScale * OpenLayers.INCHES_PER_UNIT[units]
-                                * OpenLayers.DOTS_PER_INCH);
+                                    * OpenLayers.DOTS_PER_INCH);
     return resolution;
 };