diff --git a/core/modules/taxonomy/taxonomy.js b/core/modules/taxonomy/taxonomy.js
index 0fe6e9a9e9f21f42ca1d835f62d4606dd12871c1..2621f70adac3f6fee326f550bec793bb7e55fedf 100644
--- a/core/modules/taxonomy/taxonomy.js
+++ b/core/modules/taxonomy/taxonomy.js
@@ -29,8 +29,8 @@ Drupal.behaviors.termDrag = {
       }
 
       if (settings.taxonomy.forwardStep) {
-        for (var n = rows - settings.taxonomy.forwardStep - 1; n < rows - 1; n++) {
-          $(table[0].tBodies[0].rows[n]).addClass('taxonomy-term-preview');
+        for (var k = rows - settings.taxonomy.forwardStep - 1; k < rows - 1; k++) {
+          $(table[0].tBodies[0].rows[k]).addClass('taxonomy-term-preview');
         }
         $(table[0].tBodies[0].rows[rows - settings.taxonomy.forwardStep - 2]).addClass('taxonomy-term-divider-top');
         $(table[0].tBodies[0].rows[rows - settings.taxonomy.forwardStep - 1]).addClass('taxonomy-term-divider-bottom');