diff --git a/src/assets/exttomime.json b/src/assets/exttomime.json
index 2728d8b3d..719abc607 100644
--- a/src/assets/exttomime.json
+++ b/src/assets/exttomime.json
@@ -5,7 +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"]},
+"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"},
@@ -1269,4 +1270,4 @@
 "zmm": {"type":"application/vnd.handheld-entertainment+xml"},
 "zoo": {"type":"application/octet-stream"},
 "zsh": {"type":"text/x-script.zsh"}
-}
\ No newline at end of file
+}
diff --git a/src/assets/mimetoext.json b/src/assets/mimetoext.json
index 438731f8b..5059dc720 100644
--- a/src/assets/mimetoext.json
+++ b/src/assets/mimetoext.json
@@ -1018,7 +1018,7 @@
 "text/x-vcard": ["vcf"],
 "text/xml": ["resx","jcb","jcw","jmt","jmx","jcl","xsl","rhb","sqt","xml","jqz"],
 "text/yaml": ["yaml","yml"],
-"video/3gpp": ["3gp"],
+"video/3gpp": ["3gp", "3gpp"],
 "video/3gpp2": ["3g2"],
 "video/animaflex": ["afl"],
 "video/avi": ["avi"],
@@ -1092,4 +1092,4 @@
 "x-world/x-vrt": ["vrt"],
 "xgl/drawing": ["xgz"],
 "xgl/movie": ["xmz"]
-}
\ No newline at end of file
+}