diff --git a/play.pokemonshowdown.com/src/client-main.ts b/play.pokemonshowdown.com/src/client-main.ts
index bd369542e..c0a20a5e9 100644
--- a/play.pokemonshowdown.com/src/client-main.ts
+++ b/play.pokemonshowdown.com/src/client-main.ts
@@ -2167,6 +2167,9 @@ export const PS = new class extends PSModel {
 				}
 				this.update();
 				continue;
+			} case 'nametaken': {
+				PS.join('login' as RoomID, { args: { error: `Someone is already using the name ${args[1]}.` } });
+				break;
 			}
 
 			}