diff --git a/inc/common.php b/inc/common.php
index 8448037b1bff7d90aea25d848cb6e086b5a1dcdc..0358502f0bda7f54575a5698ddc6a00032ed6ed3 100644
--- a/inc/common.php
+++ b/inc/common.php
@@ -1216,7 +1216,7 @@ function detectExternalEdit($id) {
         if($lastMod > $lastRev) {
             $fileLastRev = wikiFN($id, $lastRev);
             $revinfo = $pagelog->getRevisionInfo($lastRev);
-            if(empty($lastRev) || !file_exists($fileLastRev) || $revinfo['changeType'] == DOKU_CHANGE_TYPE_DELETE) {
+            if(empty($lastRev) || !file_exists($fileLastRev) || $revinfo['type'] == DOKU_CHANGE_TYPE_DELETE) {
                 $filesize_old = 0;
             } else {
                 $filesize_old = io_getSizeFile($fileLastRev);