diff --git a/nixos/modules/services/web-apps/coder.nix b/nixos/modules/services/web-apps/coder.nix
index 318a7c8fc135..d4a5b7b2b89c 100644
--- a/nixos/modules/services/web-apps/coder.nix
+++ b/nixos/modules/services/web-apps/coder.nix
@@ -169,7 +169,7 @@ in {
       after = [ "network.target" ];
       wantedBy = [ "multi-user.target" ];
 
-      environment = config.environment.extra // {
+      environment = cfg.environment.extra // {
         CODER_ACCESS_URL = cfg.accessUrl;
         CODER_WILDCARD_ACCESS_URL = cfg.wildcardAccessUrl;
         CODER_PG_CONNECTION_URL = "user=${cfg.database.username} ${optionalString (cfg.database.password != null) "password=${cfg.database.password}"} database=${cfg.database.database} host=${cfg.database.host} ${optionalString (cfg.database.sslmode != null) "sslmode=${cfg.database.sslmode}"}";