diff --git a/semantic_router/layer.py b/semantic_router/layer.py
index 5e99d3861d5e2e7794312a47e260a1fc06101577..23f82da319d478ea30d487a526b63687026ed4ab 100644
--- a/semantic_router/layer.py
+++ b/semantic_router/layer.py
@@ -188,7 +188,9 @@ class RouteLayer:
         # get chosen route object
         matching_routes = [route for route in self.routes if route.name == top_class]
         if not matching_routes:
-            logger.error(f"No route found with name {top_class}. Check to see if any Routes have been defined.")
+            logger.error(
+                f"No route found with name {top_class}. Check to see if any Routes have been defined."
+            )
             return RouteChoice()
         route = matching_routes[0]
         threshold = (