diff --git a/tools/coredump.py b/tools/coredump.py
index e6071442db..3b9a9d48d6 100755
--- a/tools/coredump.py
+++ b/tools/coredump.py
@@ -134,8 +134,8 @@ def main():
         outfile.close()
         os.unlink(tmp)
     else:
-        tmpfile.rename(args.output)
         tmpfile.close()
+        os.rename(tmp, args.output)
 
     print("Core file conversion completed: " + args.output)