diff --git a/FHEM/92_FileLog.pm b/FHEM/92_FileLog.pm
index 267b72719..f649a3e0c 100755
--- a/FHEM/92_FileLog.pm
+++ b/FHEM/92_FileLog.pm
@@ -158,6 +158,7 @@ FileLog_Switch($)
       return 0;
     }
     $log->{FH} = $fh;
+    setReadingsVal($log, "linesInTheFile", 0, TimeNow());
     return 1;
   }
   return 0;