--- a/eric6/E5XML/SessionWriter.py	Fri Jan 29 19:31:47 2021 +0100
+++ b/eric6/E5XML/SessionWriter.py	Sat Jan 30 16:19:25 2021 +0100
@@ -58,7 +58,7 @@
                 " eric session file for project {0} ".format(self.name))
         self.writeComment(
             " This file was generated automatically, do not edit. ")
-        if Preferences.getProject("XMLTimestamp") or isGlobal:
+        if Preferences.getProject("TimestampFile") or isGlobal:
             self.writeComment(
                 " Saved: {0} ".format(time.strftime('%Y-%m-%d, %H:%M:%S')))