diff --git a/client/html/post_merge_side.tpl b/client/html/post_merge_side.tpl
index fe70502..a08070f 100644
--- a/client/html/post_merge_side.tpl
+++ b/client/html/post_merge_side.tpl
@@ -42,6 +42,7 @@
                     'image/heic': 'HEIC',
                     'video/webm': 'WEBM',
                     'video/mp4': 'MPEG-4',
+                    'video/quicktime': 'MOV',
                     'application/x-shockwave-flash': 'SWF',
                 }[ctx.post.mimeType] +
                 ' (' +
diff --git a/client/html/post_readonly_sidebar.tpl b/client/html/post_readonly_sidebar.tpl
index 4f18624..0f93ae3 100644
--- a/client/html/post_readonly_sidebar.tpl
+++ b/client/html/post_readonly_sidebar.tpl
@@ -15,6 +15,7 @@
                     'image/heic': 'HEIC',
                     'video/webm': 'WEBM',
                     'video/mp4': 'MPEG-4',
+                    'video/quicktime': 'MOV',
                     'application/x-shockwave-flash': 'SWF',
                 }[ctx.post.mimeType] %>
             </a>
diff --git a/client/js/views/post_upload_view.js b/client/js/views/post_upload_view.js
index fc98a19..4ef4c1a 100644
--- a/client/js/views/post_upload_view.js
+++ b/client/js/views/post_upload_view.js
@@ -22,6 +22,7 @@ function _mimeTypeToPostType(mimeType) {
             "image/heic": "image",
             "video/mp4": "video",
             "video/webm": "video",
+            "video/quicktime": "video",
         }[mimeType] || "unknown"
     );
 }
@@ -120,6 +121,7 @@ class Url extends Uploadable {
             heif: "image/heif",
             heic: "image/heic",
             mp4: "video/mp4",
+            mov: "video/quicktime",
             webm: "video/webm",
         };
         for (let extension of Object.keys(mime)) {
diff --git a/server/szurubooru/func/mime.py b/server/szurubooru/func/mime.py
index 3be43f7..4aa9c3d 100644
--- a/server/szurubooru/func/mime.py
+++ b/server/szurubooru/func/mime.py
@@ -39,6 +39,9 @@ def get_mime_type(content: bytes) -> str:
     if content[4:12] in (b"ftypisom", b"ftypiso5", b"ftypmp42", b"ftypM4V "):
         return "video/mp4"
 
+    if content[4:12] in (b"ftypqt  "):
+        return "video/quicktime"
+
     return "application/octet-stream"
 
 
@@ -54,6 +57,7 @@ def get_extension(mime_type: str) -> Optional[str]:
         "image/heif": "heif",
         "image/heic": "heic",
         "video/mp4": "mp4",
+        "video/quicktime": "mov",
         "video/webm": "webm",
         "application/octet-stream": "dat",
     }
@@ -65,7 +69,7 @@ def is_flash(mime_type: str) -> bool:
 
 
 def is_video(mime_type: str) -> bool:
-    return mime_type.lower() in ("application/ogg", "video/mp4", "video/webm")
+    return mime_type.lower() in ("application/ogg", "video/mp4", "video/quicktime", "video/webm")
 
 
 def is_image(mime_type: str) -> bool: