diff --git a/controllers/issues.php b/controllers/issues.php
index ceab4cc64aeb4f09231d7c4ecfbfa26abcda590e..c156a1c1e2e26b09442b74d27752aef6c6248b6a 100644
--- a/controllers/issues.php
+++ b/controllers/issues.php
@@ -7,8 +7,8 @@ final class IssuesController extends \TracToGitlab\Controller
     const SECRET_ISSUE_OPEN = 'N]<d5V/6tn/sYNMy';
 
     const LABEL_MAPPING = [
-        'TIC'  => ['1927f2b86d6b185aa6c6697810ad42f1', 'a65dd807699b7b3b3d182b674042b70e', 'TIC #%u: %s'],
-        'StEP' => ['1927f2b86d6b185aa6c6697810ad42f1', '93c84607e687030b249a69cd30ca7bd9', 'StEP%05u: %s'],
+        'TIC'  => ['1927f2b86d6b185aa6c6697810ad42f1', 'a65dd807699b7b3b3d182b674042b70e', 'TIC #%1$u: %1$s'],
+        'StEP' => ['1927f2b86d6b185aa6c6697810ad42f1', '93c84607e687030b249a69cd30ca7bd9', 'StEP00???: %2$s'],
     ];
 
     public function create_action()