diff --git a/modules/c3d2.nix b/modules/c3d2.nix
index 29c89137..7a80531b 100644
--- a/modules/c3d2.nix
+++ b/modules/c3d2.nix
@@ -176,16 +176,28 @@ in
 
       users.motd = lib.mkIf cfg.enableMotd (builtins.readFile ./motd);
 
-      users.users.k-ot = lib.mkIf cfg.k-ot.enable {
-        packages = with pkgs; [ screen tmux ];
-        createHome = true;
-        isNormalUser = true;
-        uid = 1000;
-        extraGroups = [ "audio" "video" "wheel" ];
-        password = "k-otk-ot";
-        openssh.authorizedKeys.keys = adminKeys;
-      };
+      users = {
+        groups = {
+          pulse-access = { };
+        };
+        users = {
+          k-ot = lib.mkIf cfg.k-ot.enable {
+            packages = with pkgs; [ screen tmux ];
+            createHome = true;
+            isNormalUser = true;
+            uid = 1000;
+            extraGroups = [
+              "audio"
+              "pulse-access" # required for system wide pulseaudio
+              "video"
+              "wheel"
+            ];
+            password = "k-otk-ot";
+            openssh.authorizedKeys.keys = adminKeys;
+          };
 
-      users.users.root.openssh.authorizedKeys.keys = lib.mkIf cfg.allUsersCanSshRoot adminKeys;
+          root.openssh.authorizedKeys.keys = lib.mkIf cfg.allUsersCanSshRoot adminKeys;
+        };
+      };
     };
 }