diff --git a/nixos/modules/hardware/video/bumblebee.nix b/nixos/modules/hardware/video/bumblebee.nix
index e20ebc3041e..e341eac4a81 100644
--- a/nixos/modules/hardware/video/bumblebee.nix
+++ b/nixos/modules/hardware/video/bumblebee.nix
@@ -26,7 +26,7 @@ in
     hardware.bumblebee.group = mkOption {
       default = "wheel";
       example = "video";
-      type = types.uniq types.str;
+      type = types.str;
       description = ''Group for bumblebee socket'';
     };
     hardware.bumblebee.connectDisplay = mkOption {
diff --git a/nixos/modules/misc/nixpkgs.nix b/nixos/modules/misc/nixpkgs.nix
index 114feb2562d..fb5516c953c 100644
--- a/nixos/modules/misc/nixpkgs.nix
+++ b/nixos/modules/misc/nixpkgs.nix
@@ -59,7 +59,7 @@ in
     };
 
     nixpkgs.system = mkOption {
-      type = types.uniq types.str;
+      type = types.str;
       example = "i686-linux";
       description = ''
         Specifies the Nix platform type for which NixOS should be built.