diff --git a/evals/metrics/ragas/ragas.py b/evals/metrics/ragas/ragas.py
index a2598773..c31cb632 100644
--- a/evals/metrics/ragas/ragas.py
+++ b/evals/metrics/ragas/ragas.py
@@ -123,7 +123,7 @@ def measure(self, test_case: Dict):
                 else:
                     if metric == "AnswerRelevancy" and self.embeddings is None:
                         raise ValueError("AnswerRelevancy metric need provide embeddings model.")
-                    tmp_metrics.append(self.metrics_instances[metric])
+                    tmp_metrics.append(self.metric_instances[metric])
             self.metrics = tmp_metrics
         else:
             self.metrics = list(self.metric_instances.values())