diff --git a/mlos_bench/mlos_bench/optimizers/mlos_core_optimizer.py b/mlos_bench/mlos_bench/optimizers/mlos_core_optimizer.py
index 5d225ed8a5..649b070123 100644
--- a/mlos_bench/mlos_bench/optimizers/mlos_core_optimizer.py
+++ b/mlos_bench/mlos_bench/optimizers/mlos_core_optimizer.py
@@ -65,9 +65,10 @@ def __init__(
             # Make sure max_trials >= max_suggestions.
             if "max_trials" not in self._config:
                 self._config["max_trials"] = self._max_suggestions
-            assert (
-                int(self._config["max_trials"]) >= self._max_suggestions
-            ), f"max_trials {self._config.get('max_trials')} <= max_suggestions {self._max_suggestions}"
+            assert int(self._config["max_trials"]) >= self._max_suggestions, (
+                f"max_trials {self._config.get('max_trials')} "
+                f"<= max_suggestions{self._max_suggestions}"
+            )
 
             if "run_name" not in self._config and self.experiment_id:
                 self._config["run_name"] = self.experiment_id