diff --git a/gpg/sksdump.py b/gpg/sksdump.py
index 60bd66c..73f5238 100755
--- a/gpg/sksdump.py
+++ b/gpg/sksdump.py
@@ -364,7 +364,8 @@ def main():
     with open(args['logfile'], 'a') as f:
         f.write('===== {0} DONE =====\n'.format(
                                             str(datetime.datetime.utcnow())))
-    with open(os.path.join(args['destdir'], 'LAST_COMPLETED_DUMP'), 'w') as f:
+    with open(os.path.join(args['destdir'], 'LAST_COMPLETED_DUMP.txt'),
+              'w') as f:
         f.write(str(datetime.datetime.utcnow()))