diff --git a/specification/resources/spaces/models/grant.yml b/specification/resources/spaces/models/grant.yml
index 5721e8c1..35af33ec 100644
--- a/specification/resources/spaces/models/grant.yml
+++ b/specification/resources/spaces/models/grant.yml
@@ -8,12 +8,7 @@ properties:
 
   permission:
     type: string
-    description: The permission to grant to the user.
-    enum:
-    - read
-    - readwrite
-    - fullaccess
-    - ''
+    description: The permission to grant to the user. Possible values are `read`, `readwrite`, `fullaccess`, or an empty string.
     example: read
 
 required:
diff --git a/specification/resources/spaces/parameters.yml b/specification/resources/spaces/parameters.yml
index 7df2286d..7bf81ed9 100644
--- a/specification/resources/spaces/parameters.yml
+++ b/specification/resources/spaces/parameters.yml
@@ -49,12 +49,7 @@ permission:
   in: query
   name: permission
   required: false
-  description: The permission of the access key.
+  description: The permission of the access key. Possible values are `read`, `readwrite`, `fullaccess`, or an empty string.
   schema:
     type: string
-    enum:
-      - read
-      - readwrite
-      - fullaccess
-      - ""
   example: read