diff --git a/src/assets/exttomime.json b/src/assets/exttomime.json
index c89ea0c24..7720dc36e 100644
--- a/src/assets/exttomime.json
+++ b/src/assets/exttomime.json
@@ -5,8 +5,8 @@
 "3dml": {"type":"text/vnd.in3d.3dml"},
 "3ds": {"type":"image/x-3ds"},
 "3g2": {"type":"video/3gpp2"},
-"3gp": {"type":"video/quicktime","icon":"quicktime","string":"video","groups":["video"]},
-"3gpp": {"type":"video/quicktime","icon":"quicktime","string":"video","groups":["video"]},
+"3gp": {"type":"video/3gpp","icon":"quicktime","string":"video","groups":["video"]},
+"3gpp": {"type":"video/3gpp","icon":"quicktime","string":"video","groups":["video"]},
 "7z": {"type":"application/x-7z-compressed","icon":"archive","string":"archive","groups":["archive"]},
 "a": {"type":"application/octet-stream"},
 "aab": {"type":"application/x-authorware-bin"},