diff --git a/modules/nix-ssh-agent.nix b/modules/nix-ssh-agent.nix
index e1b080c..c6a8243 100644
--- a/modules/nix-ssh-agent.nix
+++ b/modules/nix-ssh-agent.nix
@@ -24,6 +24,6 @@ in {
       };
     };
 
-    nix.envVars.SSH_AUTH_SOCK = "/run/nix-ssh-agent";
+    systemd.services.nix-daemon.environment.SSH_AUTH_SOCK = "/run/nix-ssh-agent";
   };
 }