diff --git a/container-engine-lib/lib/backend_impls/docker/docker_manager/docker_auth_test.go b/container-engine-lib/lib/backend_impls/docker/docker_manager/docker_auth_test.go
index 1f328911e2..efc7b6d0b5 100644
--- a/container-engine-lib/lib/backend_impls/docker/docker_manager/docker_auth_test.go
+++ b/container-engine-lib/lib/backend_impls/docker/docker_manager/docker_auth_test.go
@@ -27,6 +27,13 @@ func writeStaticConfig(t *testing.T, configContent string) string {
 	return tmpDir
 }
 
+func TestGetNoAuth(t *testing.T) {
+	os.Setenv(ENV_DOCKER_CONFIG, "/does/not/exist")
+	authConfig, err := GetAuthFromDockerConfig("my-repo/my-image:latest")
+	assert.NoError(t, err)
+	assert.Nil(t, authConfig, "Auth config should be nil")
+}
+
 func TestGetAuthConfigForRepoPlain(t *testing.T) {
 	expectedUser := "user"
 	expectedPassword := "password"