diff --git a/main.go b/main.go
index aca7ffb..97c7608 100644
--- a/main.go
+++ b/main.go
@@ -66,7 +66,7 @@ func registerForRandomGame(c *gin.Context) {
 }
 
 func registerWebSocketConnection(c *gin.Context) {
-	webSocketConn, err := websocket.Accept(c.Writer, c.Request, &websocket.AcceptOptions{OriginPatterns: []string{"chess.sw-gross.de:*"}})
+	webSocketConn, err := websocket.Accept(c.Writer, c.Request, &websocket.AcceptOptions{OriginPatterns: []string{"chess.sw-gross.de"}})
 	if err != nil {
 		log.Println(err)
 		return