diff --git a/restapi.go b/restapi.go
index f4ffaf1..a54dfe8 100644
--- a/restapi.go
+++ b/restapi.go
@@ -1399,5 +1399,12 @@ func (s *Session) Gateway() (gateway string, err error) {
 	}
 
 	gateway = temp.URL
+
+	// Ensure the gateway always has a trailing slash.
+	// MacOS will fail to connect if we add query params without a trailing slash on the base domain.
+	if !strings.HasSuffix(gateway, "/") {
+		gateway += "/"
+	}
+
 	return
 }