diff --git a/pkgs/os-specific/linux/kernel/zen-kernels.nix b/pkgs/os-specific/linux/kernel/zen-kernels.nix
index 9a5b34e742ad..2b4a130467ea 100644
--- a/pkgs/os-specific/linux/kernel/zen-kernels.nix
+++ b/pkgs/os-specific/linux/kernel/zen-kernels.nix
@@ -124,6 +124,7 @@ let
             PSI = lib.mkForce (option no);
             RT_GROUP_SCHED = lib.mkForce (option no);
             SCHED_AUTOGROUP = lib.mkForce (option no);
+            SCHED_CLASS_EXT = lib.mkForce (option no);
             SCHED_CORE = lib.mkForce (option no);
             UCLAMP_TASK = lib.mkForce (option no);
             UCLAMP_TASK_GROUP = lib.mkForce (option no);