diff --git a/pkgs/development/python-modules/mkdocs/default.nix b/pkgs/development/python-modules/mkdocs/default.nix
index a9c9591abfac..c73ed266f51d 100644
--- a/pkgs/development/python-modules/mkdocs/default.nix
+++ b/pkgs/development/python-modules/mkdocs/default.nix
@@ -16,7 +16,7 @@
 , pyyaml
 , pyyaml-env-tag
 , watchdog
-# testing deps
+  # testing deps
 , Babel
 , mock
 , pytestCheckHook