diff --git a/frigate/api/defs/regenerate_query_parameters.py b/frigate/api/defs/regenerate_query_parameters.py
index 4a8326cda..83b578343 100644
--- a/frigate/api/defs/regenerate_query_parameters.py
+++ b/frigate/api/defs/regenerate_query_parameters.py
@@ -2,6 +2,8 @@ from typing import Optional
 
 from pydantic import BaseModel
 
+from frigate.events.types import RegenerateDescriptionEnum
+
 
 class RegenerateQueryParameters(BaseModel):
-    source: Optional[str] = "thumbnails"
+    source: Optional[str] = RegenerateDescriptionEnum.thumbnails