diff --git a/docs/source/conf.py b/docs/source/conf.py
index a59f7712..9fcccac4 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -50,11 +50,7 @@ class Mock(MagicMock):
         return MagicMock()
 
 
-mock_imports = [
-    "picamerax",
-    "picamerax.array",
-    "picamerax.mmalobj",
-]
+mock_imports = ["picamerax", "picamerax.array", "picamerax.mmalobj"]
 
 sys.modules.update((mod_name, Mock()) for mod_name in mock_imports)