diff --git a/tests/client_test.go b/tests/client_test.go
index 2c8d3b7d..5098a209 100644
--- a/tests/client_test.go
+++ b/tests/client_test.go
@@ -66,6 +66,7 @@ func client_CLIENT_test(mc *mockServer) error {
 		if err != nil {
 			return err
 		}
+		conn.Do("PING")
 		conns = append(conns, conn)
 	}