diff --git a/libraries/DatabaseInterface.php b/libraries/DatabaseInterface.php
index dc2fff111295..4b8d3d4f432a 100644
--- a/libraries/DatabaseInterface.php
+++ b/libraries/DatabaseInterface.php
@@ -2646,7 +2646,8 @@ public function getFieldsMeta($result)
              * match existing strings
              */
             foreach ($result as $value) {
-                if (strlen($value->orgtable) !== 0 && mb_strtolower($value->orgtable) == mb_strtolower($value->table)) {
+                if (strlen($value->orgtable) !== 0 &&
+                        mb_strtolower($value->orgtable) === mb_strtolower($value->table)) {
                     $value->orgtable = $value->table;
                 }
             }