diff --git a/wp-includes/rewrite.php b/wp-includes/rewrite.php
index d074445e14..dfa27f3b5c 100644
--- a/wp-includes/rewrite.php
+++ b/wp-includes/rewrite.php
@@ -316,6 +316,7 @@ class WP_Rewrite {
 				$front = $front . 'date/';
 				break;
 			}
+			$tok_index++;
 		}
 
 		$this->date_structure = $front . $date_endian;