diff --git a/planemo/commands/cmd_workflow_lint.py b/planemo/commands/cmd_workflow_lint.py
index 2508c6236..91bcacfa3 100644
--- a/planemo/commands/cmd_workflow_lint.py
+++ b/planemo/commands/cmd_workflow_lint.py
@@ -4,7 +4,10 @@
 
 from planemo import options
 from planemo.cli import command_function
-from planemo.workflow_lint import build_wf_lint_args, lint_workflow_artifacts_on_paths
+from planemo.workflow_lint import (
+    build_wf_lint_args,
+    lint_workflow_artifacts_on_paths,
+)
 
 
 @click.command("workflow_lint")