diff --git a/core/dbt/task/run.py b/core/dbt/task/run.py
index 21a32cd1160..11db9666c41 100644
--- a/core/dbt/task/run.py
+++ b/core/dbt/task/run.py
@@ -100,7 +100,7 @@ def get_hooks_by_tags(
 
 def get_hook(source, index):
     hook_dict = get_hook_dict(source)
-    hook_dict.setdefault('index', index)
+    hook_dict.setdefault("index", index)
     Hook.validate(hook_dict)
     return Hook.from_dict(hook_dict)