diff --git a/lib/util.js b/lib/util.js
index edb446e..693caa9 100644
--- a/lib/util.js
+++ b/lib/util.js
@@ -313,7 +313,7 @@ exports.propCopy = function( props, dest, result_data, actions )
     // because the length of the array remains the same after deleting elements)
     if ( abstract_regen )
     {
-        result_data.abstractMethods = array_shrink( abstract_methods );
+        result_data.abstractMethods = exports.arrayShrink( abstract_methods );
     }
 }
 
@@ -440,7 +440,7 @@ function method_override(
  *
  * @return  {Array}  shrunken array
  */
-function array_shrink( items )
+exports.arrayShrink = function( items )
 {
     // copy the methods into a new array by pushing them onto it, to ensure
     // the length property of the array will work properly