diff --git a/expo/research_assistant.py b/expo/research_assistant.py
index c26f24586..e0dc73418 100644
--- a/expo/research_assistant.py
+++ b/expo/research_assistant.py
@@ -31,7 +31,7 @@ If you cannot find the scores, please still return a dictionary with the keys 't
 {{
     "train_score": x.x,
     "dev_score": x.x,
-    "test_score": x.x,
+    "test_score": x.x
 }}
 ```
 """