diff --git a/nixos/modules/system/boot/kernel.nix b/nixos/modules/system/boot/kernel.nix
index 50dbf2f8365..8a309f3bc5f 100644
--- a/nixos/modules/system/boot/kernel.nix
+++ b/nixos/modules/system/boot/kernel.nix
@@ -108,7 +108,7 @@ in
     boot.extraModulePackages = mkOption {
       type = types.listOf types.package;
       default = [];
-      example = literalExample "[ pkgs.linuxPackages.nvidia_x11 ]";
+      example = literalExample "[ config.boot.kernelPackages.nvidia_x11 ]";
       description = "A list of additional packages supplying kernel modules.";
     };