diff --git a/pkgs/os-specific/linux/scx/scx_cscheds.nix b/pkgs/os-specific/linux/scx/scx_cscheds.nix
index 4089fcc1d16d..b23d424d0070 100644
--- a/pkgs/os-specific/linux/scx/scx_cscheds.nix
+++ b/pkgs/os-specific/linux/scx/scx_cscheds.nix
@@ -49,7 +49,7 @@ llvmPackages.stdenv.mkDerivation (finalAttrs: {
   ];
 
   __structuredAttrs = true;
-  env.EXPECTED_SCHEDULERS = finalAttrs.passthru.schedulers;
+  EXPECTED_SCHEDULERS = finalAttrs.passthru.schedulers;
 
   doInstallCheck = true;
   installCheckPhase = ''