diff --git a/classes/security/authorization/OjsJournalMustPublishPolicy.php b/classes/security/authorization/OjsJournalMustPublishPolicy.php
index e0e8a6c1900..9fde17674e9 100644
--- a/classes/security/authorization/OjsJournalMustPublishPolicy.php
+++ b/classes/security/authorization/OjsJournalMustPublishPolicy.php
@@ -1,4 +1,5 @@
 <?php
+
 /**
  * @file classes/security/authorization/OjsJournalMustPublishPolicy.php
  *
@@ -38,7 +39,7 @@ public function __construct($request)
     //
     // Implement template methods from AuthorizationPolicy
     //
-    public function effect()
+    public function effect(): int
     {
         if (!$this->_context) {
             return AuthorizationPolicy::AUTHORIZATION_DENY;