diff --git a/src/Tests/ApiKeyConfigurationTest.php b/src/Tests/ApiKeyConfigurationTest.php
index 2f5a98d..9aedc39 100755
--- a/src/Tests/ApiKeyConfigurationTest.php
+++ b/src/Tests/ApiKeyConfigurationTest.php
@@ -40,7 +40,7 @@ class ApiKeyConfigurationTest extends WebTestBase {
   /**
    * Test to implement a runtime requirement checking if API key is not set.
    */
-  function testKeyConfiguration() {
+  public function testKeyConfiguration() {
     $this->drupalGet(Url::fromRoute('google_vision.settings'));
     $this->assertResponse(200);
     $this->assertFieldByName('api_key', '', 'The API key is not set');
@@ -54,7 +54,7 @@ class ApiKeyConfigurationTest extends WebTestBase {
   /**
    * Test to verify that it is stored successfully.
    */
-  function testKeyStorage() {
+  public function testKeyStorage() {
     $this->drupalGet(Url::fromRoute('google_vision.settings'));
     $this->assertResponse(200);
     $this->assertFieldByName('api_key', '', 'The key is not set currently');