diff --git a/mlair/run_modules/experiment_setup.py b/mlair/run_modules/experiment_setup.py
index 68901d33c88f9f5b94b783d7d286fe1573027516..63be6eb4c6e8b5f8d3149df023e07d23805f077f 100644
--- a/mlair/run_modules/experiment_setup.py
+++ b/mlair/run_modules/experiment_setup.py
@@ -402,8 +402,10 @@ class ExperimentSetup(RunEnvironment):
                 if len(self.data_store.search_name(k)) == 0:
                     self._set_param(k, v)
                 else:
+                    s = ", ".join([f"{k}({s})={self.data_store.get(k, scope=s)}"
+                                   for s in self.data_store.search_name(k)])
                     raise KeyError(f"Given argument {k} with value {v} cannot be set for this experiment due to a "
-                                   f"conflict with an existing entry with same naming: {k}={self.data_store.get(k)}")
+                                   f"conflict with an existing entry with same naming: {s}")
 
     def _set_param(self, param: str, value: Any, default: Any = None, scope: str = "general",
                    apply: Callable = None) -> Any: