diff --git a/event-schemas/schema/core-event-schema/msgtype_infos/image_info.yaml b/event-schemas/schema/core-event-schema/msgtype_infos/image_info.yaml
index 8920f58c..05d04e0b 100644
--- a/event-schemas/schema/core-event-schema/msgtype_infos/image_info.yaml
+++ b/event-schemas/schema/core-event-schema/msgtype_infos/image_info.yaml
@@ -14,7 +14,7 @@ properties:
     description: The width of the image in pixels.
     type: integer
   thumbnail_url:
-    desciption: The URL to a thumbnail of the image.
+    description: The URL to a thumbnail of the image.
     type: string
   thumbnail_info:
     allOf: