diff --git a/core/lib/Drupal/Core/Datetime/DateFormatter.php b/core/lib/Drupal/Core/Datetime/DateFormatter.php
index cd1c5f31bcfdc1624a29fd6bd6014a29c6174764..3184256edadb1329f4b467233e8a5e452795783f 100644
--- a/core/lib/Drupal/Core/Datetime/DateFormatter.php
+++ b/core/lib/Drupal/Core/Datetime/DateFormatter.php
@@ -127,7 +127,7 @@ public function format($timestamp, $type = 'medium', $format = '', $timezone = N
       }
     }
 
-    // Fall back to the 'medium' date format type if the format string is
+    // Fall back to the 'fallback' date format type if the format string is
     // empty, either from not finding a requested date format or being given an
     // empty custom format string.
     if (empty($format)) {