diff --git a/app/Handlers/Events/StoredJournalEventHandler.php b/app/Handlers/Events/StoredJournalEventHandler.php
index c4e10d8f24..14e4e2a438 100644
--- a/app/Handlers/Events/StoredJournalEventHandler.php
+++ b/app/Handlers/Events/StoredJournalEventHandler.php
@@ -49,7 +49,7 @@ class StoredJournalEventHandler
          * Verify existence of piggy bank:
          */
         if (!$this->verifyExistence($event)) {
-            Log::error('No such piggy bank or no repetition on %s', $journal->date->format('Y-m-d'));
+            Log::error(sprintf('No such piggy bank or no repetition on %s', $journal->date->format('Y-m-d')));
 
             return true;
         }