diff --git a/backend/api/posts/serializers.py b/backend/api/posts/serializers.py
index 9421efd..7052660 100644
--- a/backend/api/posts/serializers.py
+++ b/backend/api/posts/serializers.py
@@ -58,7 +58,19 @@ class PostPreviewSerializer(serializers.ModelSerializer):
         }
 
     def get_media(self, obj: PostModel) -> List[Dict[str, str]]:
-        return [{"type": i.mimetype, "src": i.file.url} for i in obj.files.all()]
+        data = []
+        for i in obj.files.all():
+            if i.mimetype.startswith("video/"):
+                f_type = "video"
+            elif i.mimetype.startswith("image/gif"):
+                f_type = "gif"
+            elif i.mimetype.startswith("image/"):
+                f_type = "image"
+            else:
+                f_type = "other"
+
+            data.append({"type": f_type, "mimetype": i.mimetype, "src": i.file.url})
+        return data
 
     def get_tags(self, obj: PostModel) -> List[str]:
         return [tag.slug for tag in obj.tags.all()]