diff --git a/src/google/adk/evaluation/eval_metrics.py b/src/google/adk/evaluation/eval_metrics.py
index 5d10ef5b..91ef6e6f 100644
--- a/src/google/adk/evaluation/eval_metrics.py
+++ b/src/google/adk/evaluation/eval_metrics.py
@@ -32,11 +32,6 @@ class EvalMetric(BaseModel):
       populate_by_name=True,
   )
 
-  model_config = ConfigDict(
-      alias_generator=alias_generators.to_camel,
-      populate_by_name=True,
-  )
-
   metric_name: str
   """The name of the metric."""