diff --git a/literalai/prompt_engineering/prompt.py b/literalai/prompt_engineering/prompt.py
index 1327301..433e950 100644
--- a/literalai/prompt_engineering/prompt.py
+++ b/literalai/prompt_engineering/prompt.py
@@ -237,7 +237,7 @@ def format_messages(self, **kwargs: Any) -> List[BaseMessage]:
                     except AttributeError:
                         for m in ChatPromptTemplate.from_messages(
                             [message]
-                        ).format_messages():
+                        ).format_messages(**kwargs):
                             rendered_messages.append(m)
                         continue