diff --git a/modules/taxonomy/taxonomy.install b/modules/taxonomy/taxonomy.install
index db281af..6e97275 100644
--- a/modules/taxonomy/taxonomy.install
+++ b/modules/taxonomy/taxonomy.install
@@ -939,7 +939,7 @@ function taxonomy_update_7011(&$sandbox) {
  */
 
 /**
- * Add entity_revision_is_default nodes to the taxonomy index table.
+ * Add unpublished nodes to the taxonomy index table if it is a default revision.
  */
 function taxonomy_update_7012(&$sandbox) {
   if (!isset($sandbox['total'])) {
@@ -958,16 +958,16 @@ function taxonomy_update_7012(&$sandbox) {
     // Build the taxonomy index for each node.
     foreach ($nids as $nid) {
       $node = node_load($nid);
-      $isDefaultRevision = $node->status;
+      $is_default_revision = $node->status;
       if (module_exists('entity')) {
         $entity_type = 'node';
         $entity = entity_load($entity_type, array($node->nid));
-        $isDefaultRevision = (int) entity_revision_is_default($entity_type, $entity);
+        $is_default_revision = (int) entity_revision_is_default($entity_type, $entity);
       }
-      if($isDefaultRevision) {
+      if ($is_default_revision) {
         taxonomy_build_node_index($node);
+        $sandbox['last'] = $node->nid;
       }
-      $sandbox['last'] = $node->nid;
     }
     $sandbox['count'] += $batch_size;
   }
diff --git a/modules/taxonomy/taxonomy.module b/modules/taxonomy/taxonomy.module
index f4dd98a..e34b9d1 100644
--- a/modules/taxonomy/taxonomy.module
+++ b/modules/taxonomy/taxonomy.module
@@ -1939,14 +1939,14 @@ function taxonomy_build_node_index($node) {
       $sticky = (int)(!empty($node->sticky));
     }
   }
-  $isDefaultRevision = $status;
+  $is_default_revision = $status;
   if (module_exists('entity')) {
     $entity_type = 'node';
     $entity = entity_load($entity_type, array($node->nid));
-    $isDefaultRevision = (int) entity_revision_is_default($entity_type, $entity);
+    $is_default_revision = (int) entity_revision_is_default($entity_type, $entity);
   }
   // We only maintain the taxonomy index for the default node revision.
-  if ($isDefaultRevision) {
+  if ($is_default_revision) {
     // Collect a unique list of all the term IDs from all node fields.
     $tid_all = array();
     foreach (field_info_instances('node', $node->type) as $instance) {