diff --git a/appliance/redis/cmd/flynn-redis/main_test.go b/appliance/redis/cmd/flynn-redis/main_test.go
index <HASH>..<HASH> 100644
--- a/appliance/redis/cmd/flynn-redis/main_test.go
+++ b/appliance/redis/cmd/flynn-redis/main_test.go
@@ -41,6 +41,9 @@ func TestMain_Discoverd(t *testing.T) {
 		return hb, nil
 	}
 
+	// set a password
+	m.Process.Password = "test"
+
 	// Execute program.
 	if err := m.Run(); err != nil {
 		t.Fatal(err)
appliance/redis: Set a password in TestMain_Discoverd

CI runs an old version of Redis which seems to handle empty passwords
differently than newer versions (e.g. the version used in vagrant)