diff --git a/dspy/predict/multi_chain_comparison.py b/dspy/predict/multi_chain_comparison.py
index 63c4f969c..17e2832f4 100644
--- a/dspy/predict/multi_chain_comparison.py
+++ b/dspy/predict/multi_chain_comparison.py
@@ -36,7 +36,7 @@ def forward(self, completions, **kwargs):
         attempts = []
 
         for c in completions:
-            rationale = c.rationale.strip().split("\n")[0].strip()
+            rationale = c.get('rationale', c.get('reasoning')).strip().split("\n")[0].strip()
             answer = c[self.last_key].strip().split("\n")[0].strip()
             attempts.append(
                 f"«I'm trying to {rationale} I'm not sure but my prediction is {answer}»",