diff --git a/eive_tmtc/tmtc/obj_prompt.py b/eive_tmtc/tmtc/obj_prompt.py
index 5091e9a..69ee1f5 100644
--- a/eive_tmtc/tmtc/obj_prompt.py
+++ b/eive_tmtc/tmtc/obj_prompt.py
@@ -50,10 +50,10 @@ def get_obj_if_from_dict(lut: dict) -> bytes:
     for k, v in lut.items():
         print(f"{k}: {v[0]}")
     obj_key = int(input("Please specify target object by key: "))
-    acs_obj = lut[obj_key]
-    if acs_obj is None:
+    name_and_obj_id = lut[obj_key]
+    if name_and_obj_id is None:
         raise ValueError("invalid key")
-    return lut[1]
+    return name_and_obj_id[1]
 
 
 def prompt_object() -> bytes: