diff --git a/irtoc_scripts/object.irt b/irtoc_scripts/object.irt
index fe7943aa0d5483ae3ad37146ede5123abe4747b4..0735e197c96c4a88ef8f50188c870558bb80504a 100644
--- a/irtoc_scripts/object.irt
+++ b/irtoc_scripts/object.irt
@@ -555,12 +555,14 @@ end
   postfix = "#{postfix}#{to_name.call(access_mode)}" unless access_mode == :unknown
 
   extra_params = {}
-  if access_type == :by_name
-    extra_params.update({ic_slot: 'u16'})
+  if access_type == :unknown
+    extra_params.update({this_func: 'any'})
+  elsif access_type == :by_name
+    extra_params.update({ic_slot: 'u16', this_func: 'any', cp: 'any'})
   end
 
   function("LoadObjectDynamic#{postfix}",
-          params: {obj: 'ref', key: 'any'}.merge(extra_params).merge({this_func: 'any'}),
+          params: {obj: 'ref', key: 'any'}.merge(extra_params),
           regmap: $full_regmap,
           mode: [:FastPath, :DynamicMethod, :DynamicStub],
           regalloc_set: $panda_mask,
@@ -603,7 +605,7 @@ end
   }
 
   function("StoreObjectDynamic#{postfix}",
-          params: {obj: 'ref', key: 'any', value: 'any'}.merge(extra_params).merge({this_func: 'any'}),
+          params: {obj: 'ref', key: 'any', value: 'any'}.merge(extra_params),
           regmap: $full_regmap,
           mode: [:FastPath, :DynamicMethod, :DynamicStub],
           regalloc_set: $panda_mask,