diff --git a/microsoft/surface/common/kernel/linux-6.6.x/default.nix b/microsoft/surface/common/kernel/linux-6.6.x/default.nix
index 645c4cf..1bd0345 100644
--- a/microsoft/surface/common/kernel/linux-6.6.x/default.nix
+++ b/microsoft/surface/common/kernel/linux-6.6.x/default.nix
@@ -28,7 +28,7 @@ let
 
 in {
   options.microsoft-surface.kernelVersion = mkOption {
-    type = types.enum [ version ];
+    type = types.enum [ version majorVersion ];
   };
 
   config = mkIf (cfg.kernelVersion == version || cfg.kernelVersion == majorVersion) {