diff --git a/nixos/modules/system/boot/kernel.nix b/nixos/modules/system/boot/kernel.nix
index cff7c08579f4..a90d1f7c2aa4 100644
--- a/nixos/modules/system/boot/kernel.nix
+++ b/nixos/modules/system/boot/kernel.nix
@@ -249,6 +249,7 @@ in
             SuccessExitStatus = "0 1";
           };
         restartTriggers = [ kernelModulesConf ];
+        environment.MODULE_DIR = "/run/booted-system/kernel-modules/lib/modules";
       };
 
     lib.kernelConfig = {