diff --git a/bulkredditdownloader/resource.py b/bulkredditdownloader/resource.py
index ea6a692..30cbd3d 100644
--- a/bulkredditdownloader/resource.py
+++ b/bulkredditdownloader/resource.py
@@ -51,7 +51,7 @@ class Resource:
         self.hash = hashlib.md5(self.content)
 
     def _determine_extension(self) -> str:
-        extension_pattern = r'.*(\..{3,5})$'
+        extension_pattern = re.compile(r'.*(\..{3,5})(?:\?.*)?$')
         match = re.search(extension_pattern, self.url)
         if match:
             return match.group(1)