diff --git a/lib/customisation.nix b/lib/customisation.nix
index 30747f7fde7e..55117f8289d0 100644
--- a/lib/customisation.nix
+++ b/lib/customisation.nix
@@ -763,11 +763,11 @@ rec {
     # Inputs
 
     `extendMkDerivation`-specific configurations
-    : `constructDrv`: Base build helper, the `mkDerivation`-like build helper to extend.
-    : `excludeDrvArgNames`: Argument names not to pass from the input fixed-point arguments to `constructDrv`. Note: It doesn't apply to the updating arguments returned by `extendDrvArgs`.
-    : `extendDrvArgs` : An extension (overlay) of the argument set, like the one taken by [overrideAttrs](#sec-pkg-overrideAttrs) but applied before passing to `constructDrv`.
-    : `inheritFunctionArgs`: Whether to inherit `__functionArgs` from the base build helper (default to `true`).
-    : `transformDrv`: Function to apply to the result derivation (default to `lib.id`).
+    : `constructDrv` (required): Base build helper, the `mkDerivation`-like build helper to extend.
+    : `excludeDrvArgNames` (default to `[ ]`): Argument names not to pass from the input fixed-point arguments to `constructDrv`. Note: It doesn't apply to the updating arguments returned by `extendDrvArgs`.
+    : `extendDrvArgs` (required): An extension (overlay) of the argument set, like the one taken by [overrideAttrs](#sec-pkg-overrideAttrs) but applied before passing to `constructDrv`.
+    : `inheritFunctionArgs` (default to `true`): Whether to inherit `__functionArgs` from the base build helper.
+    : `transformDrv` (default to `lib.id`): Function to apply to the result derivation.
 
     # Type