diff --git a/conda_smithy/linter/utils.py b/conda_smithy/linter/utils.py
index 5c9ccfddc..9745b48be 100644
--- a/conda_smithy/linter/utils.py
+++ b/conda_smithy/linter/utils.py
@@ -237,7 +237,9 @@ def flatten_v1_if_else(requirements: list[str | dict]) -> list[str]:
     for req in requirements:
         if isinstance(req, dict):
             flattened_requirements.extend(flatten_v1_if_else(req["then"]))
-            flattened_requirements.extend(flatten_v1_if_else(req.get("else") or []))
+            flattened_requirements.extend(
+                flatten_v1_if_else(req.get("else") or [])
+            )
         else:
             flattened_requirements.append(req)
     return flattened_requirements