diff --git a/nixos/modules/services/web-apps/code-server.nix b/nixos/modules/services/web-apps/code-server.nix
index 1f8defce5e22..2ee20e12853b 100644
--- a/nixos/modules/services/web-apps/code-server.nix
+++ b/nixos/modules/services/web-apps/code-server.nix
@@ -232,6 +232,9 @@ in
         + lib.optionalString (cfg.socket != null) ''
           --socket=${cfg.socket} \
         ''
+        + lib.optionalString (cfg.socketMode != null) ''
+          --socket-mode=${cfg.socketMode} \
+        ''
         + lib.optionalString (cfg.userDataDir != null) ''
           --user-data-dir=${cfg.userDataDir} \
         ''