1 files changed, 3 insertions, 0 deletions
diff --git a/server.lua b/server.lua
index 2566efa..d03634b 100644
--- a/server.lua
+++ b/server.lua
@@ -195,6 +195,9 @@ return function(env)
 			 parent[name] = nil
 
 		      elseif method == 'PUT' then
+			 if isinstance(parent, acf.model.set.Set) then
+			    return 405
+			 end
 			 local permission = 'modify'
 			 if obj == nil then
 			    obj = parent