diff --git a/curator.py b/curator.py
index 3f6278f..f340eb1 100755
--- a/curator.py
+++ b/curator.py
@@ -105,7 +105,7 @@ def main():
                     oldfilename = str(video)[str(video).rindex("/") + 1:]
                     newfilename = oldfilename[:-4] + ".mkv"
                     if oldfilename == newfilename:
-                        newfilename = oldfilename[:-4] + "[HEVC]"
+                        newfilename = oldfilename[:-4] + "[HEVC]" + ".mkv"
 
                     counter += 1
                     print(f"{bcolors.OKCYAN}***********   convert {counter} of {len(videolist)}   ***********{bcolors.ENDC}")