diff --git a/pkgs/os-specific/linux/kernel/common-config.nix b/pkgs/os-specific/linux/kernel/common-config.nix
index 96b1e0afb324..302325018eac 100644
--- a/pkgs/os-specific/linux/kernel/common-config.nix
+++ b/pkgs/os-specific/linux/kernel/common-config.nix
@@ -461,6 +461,9 @@ let
 
         DRM_LEGACY = whenOlder "6.8" no;
 
+        # Must be the same as CONFIG_DRM
+        BACKLIGHT_CLASS_DEVICE = yes;
+
         NOUVEAU_LEGACY_CTX_SUPPORT = whenOlder "6.3" no;
 
         # Enable simpledrm and use it for generic framebuffer