diff --git a/lib/OpenLayers/BaseTypes.js b/lib/OpenLayers/BaseTypes.js
index f3f970e332..a9768ba578 100644
--- a/lib/OpenLayers/BaseTypes.js
+++ b/lib/OpenLayers/BaseTypes.js
@@ -176,14 +176,14 @@ if (!String.prototype.camelize) {
 OpenLayers.Number = {
     /**
      * APIFunction: OpenLayers.Number.limitSigDigs
-     * Limit the number of significant digits on an integer.
+     * Limit the number of significant digits on a float.
      * 
      * Parameters:
-     * num - {Integer}
+     * num - {Float}
      * sig - {Integer}
      * 
      * Returns:
-     * {Integer} The number, rounded to the specified number of significant
+     * {Float} The number, rounded to the specified number of significant
      *     digits.
      */
     limitSigDigs: function(num, sig) {