diff --git a/vertexai/preview/evaluation/_evaluation.py b/vertexai/preview/evaluation/_evaluation.py
index 476f9663e1..c0e5464f8d 100644
--- a/vertexai/preview/evaluation/_evaluation.py
+++ b/vertexai/preview/evaluation/_evaluation.py
@@ -82,6 +82,7 @@
 }
 _SUCCESSFUL_FINISH_REASONS = [
     gapic_content_types.Candidate.FinishReason.STOP,
+    gapic_content_types.Candidate.FinishReason.MAX_TOKENS,
     # Many responses have this finish reason
     gapic_content_types.Candidate.FinishReason.FINISH_REASON_UNSPECIFIED,
 ]