diff --git a/doku.php b/doku.php
index f5aa6cfa4a4c8d29829e08b643dca5bb80009607..0f4557fd0209a2eef9d9ce4364b3593be075f05a 100644
--- a/doku.php
+++ b/doku.php
@@ -8,8 +8,8 @@
  * @global Input $INPUT
  */
 
-// update message version
-$updateVersion = 47;
+// update message version - always use a string to avoid localized floats!
+$updateVersion = "47";
 
 //  xdebug_start_profiling();
 
@@ -77,7 +77,7 @@ if($DATE_AT) {
         $DATE_AT = null;
     } else if ($rev_t === false) { //page did not exist
         $rev_n = $pagelog->getRelativeRevision($DATE_AT,+1);
-        msg(sprintf($lang['page_nonexist_rev'], 
+        msg(sprintf($lang['page_nonexist_rev'],
             strftime($conf['dformat'],$DATE_AT),
             wl($ID, array('rev' => $rev_n)),
             strftime($conf['dformat'],$rev_n)));