diff --git a/panelizer.install b/panelizer.install
index 0efe032..ddf0ce0 100644
--- a/panelizer.install
+++ b/panelizer.install
@@ -1315,7 +1315,7 @@ function panelizer_update_7303(&$sandbox) {
     $sandbox['max'] = db_query("SELECT COUNT(pd.did)
       FROM {panels_display} pd
         JOIN {panelizer_entity} p ON p.did = pd.did
-      WHERE pd.storage_type = ''")->fetchField();
+      WHERE pd.storage_type IS NULL")->fetchField();
     if (empty($sandbox['max'])) {
       return t('Nothing to be fixed in Panelizer update 7303.');
     }
@@ -1328,7 +1328,7 @@ function panelizer_update_7303(&$sandbox) {
   $result = db_query_range("SELECT pd.did, p.entity_type, p.entity_id, p.view_mode
     FROM {panels_display} pd
       JOIN {panelizer_entity} p ON p.did = pd.did
-    WHERE pd.storage_type = '' AND pd.did > :current_did
+    WHERE pd.storage_type IS NULL AND pd.did > :current_did
     ORDER BY pd.did ASC", 0, $limit, array(
       ':current_did' => $sandbox['current_did'],
     ));
@@ -1437,3 +1437,11 @@ function panelizer_update_7306() {
     }
   }
 }
+
+/**
+ * Rerun update 7303. Set the storage type and ID on existing
+ * {panelizer_entity} records.
+ */
+function panelizer_update_7307(&$sandbox) {
+  return panelizer_update_7303($sandbox);
+}