1 files changed, 2 insertions, 2 deletions
diff --git a/core/Concurrency/Lock.php b/core/Concurrency/Lock.php
index 2019c2955f..9959a533c9 100644
--- a/core/Concurrency/Lock.php
+++ b/core/Concurrency/Lock.php
@@ -82,11 +82,11 @@ class Lock
     {
         $this->lockKey = $this->lockKeyStart . $id;
 
-        if (Common::mb_strlen($this->lockKey) > self::MAX_KEY_LEN) {
+        if (mb_strlen($this->lockKey) > self::MAX_KEY_LEN) {
             // Lock key might be too long for DB column, so we hash it but leave the start of the original as well
             // to make it more readable
             $md5Len = 32;
-            $this->lockKey = Common::mb_substr($id, 0, self::MAX_KEY_LEN - $md5Len - 1) . md5($id);
+            $this->lockKey = mb_substr($id, 0, self::MAX_KEY_LEN - $md5Len - 1) . md5($id);
         }
 
         $lockValue = substr(Common::generateUniqId(), 0, 12);