diff --git a/Patch.py b/Patch.py
index f90e3766..aaa4fc24 100644
--- a/Patch.py
+++ b/Patch.py
@@ -17,7 +17,7 @@ ModuleUpdate.update()
 
 import Utils
 
-current_patch_version = 4
+current_patch_version = 5
 
 
 class AutoPatchRegister(type):
@@ -128,6 +128,7 @@ class APDeltaPatch(APContainer, metaclass=AutoPatchRegister):
         manifest = super(APDeltaPatch, self).get_manifest()
         manifest["base_checksum"] = self.hash
         manifest["result_file_ending"] = self.result_file_ending
+        manifest["patch_file_ending"] = self.patch_file_ending
         return manifest
 
     @classmethod
diff --git a/WebHostLib/downloads.py b/WebHostLib/downloads.py
index 528cbe5e..c3a373c2 100644
--- a/WebHostLib/downloads.py
+++ b/WebHostLib/downloads.py
@@ -32,9 +32,12 @@ def download_patch(room_id, patch_id):
                             new_zip.writestr("archipelago.json", json.dumps(manifest))
                         else:
                             new_zip.writestr(file.filename, zf.read(file), file.compress_type, 9)
-
+            if "patch_file_ending" in manifest:
+                patch_file_ending = manifest["patch_file_ending"]
+            else:
+                patch_file_ending = AutoPatchRegister.patch_types[patch.game].patch_file_ending
             fname = f"P{patch.player_id}_{patch.player_name}_{app.jinja_env.filters['suuid'](room_id)}" \
-                    f"{AutoPatchRegister.patch_types[patch.game].patch_file_ending}"
+                    f"{patch_file_ending}"
             new_file.seek(0)
             return send_file(new_file, as_attachment=True, download_name=fname)
         else: