diff --git a/picard/formats/mp4.py b/picard/formats/mp4.py
index 410eb1b23..4e248521c 100644
--- a/picard/formats/mp4.py
+++ b/picard/formats/mp4.py
@@ -25,7 +25,7 @@ from picard.util import encode_filename
 
 
 class MP4File(File):
-    EXTENSIONS = [".m4a", ".m4b", ".m4p", ".mp4"]
+    EXTENSIONS = [".m4a", ".m4b", ".m4p", ".m4v", ".mp4"]
     NAME = "MPEG-4 Audio"
 
     __text_tags = {