diff --git a/settings/Controller/CheckSetupController.php b/settings/Controller/CheckSetupController.php
index 5e2aa365f6..58de0f4e6d 100644
--- a/settings/Controller/CheckSetupController.php
+++ b/settings/Controller/CheckSetupController.php
@@ -373,7 +373,7 @@ Raw output
 	 * Checks whether a PHP opcache is properly set up
 	 * @return bool
 	 */
-	private function isOpcacheProperlySetup() {
+	protected function isOpcacheProperlySetup() {
 		$iniWrapper = new IniGetWrapper();
 
 		$isOpcacheProperlySetUp = true;
diff --git a/tests/Settings/Controller/CheckSetupControllerTest.php b/tests/Settings/Controller/CheckSetupControllerTest.php
index d9ba7d4367..49931994f0 100644
--- a/tests/Settings/Controller/CheckSetupControllerTest.php
+++ b/tests/Settings/Controller/CheckSetupControllerTest.php
@@ -68,8 +68,6 @@ class CheckSetupControllerTest extends TestCase {
 			->disableOriginalConstructor()->getMock();
 		$this->config = $this->getMockBuilder('\OCP\IConfig')
 			->disableOriginalConstructor()->getMock();
-		$this->config = $this->getMockBuilder('\OCP\IConfig')
-			->disableOriginalConstructor()->getMock();
 		$this->clientService = $this->getMockBuilder('\OCP\Http\Client\IClientService')
 			->disableOriginalConstructor()->getMock();
 		$this->util = $this->getMockBuilder('\OC_Util')
@@ -98,7 +96,7 @@ class CheckSetupControllerTest extends TestCase {
 				$this->checker,
 				$this->logger
 				])
-			->setMethods(['getCurlVersion', 'isPhpOutdated'])->getMock();
+			->setMethods(['getCurlVersion', 'isPhpOutdated', 'isOpcacheProperlySetup'])->getMock();
 	}
 
 	public function testIsInternetConnectionWorkingDisabledViaConfig() {
@@ -307,6 +305,10 @@ class CheckSetupControllerTest extends TestCase {
 			->expects($this->once())
 			->method('isPhpOutdated')
 			->willReturn(true);
+		$this->checkSetupController
+			->expects($this->once())
+			->method('isOpcacheProperlySetup')
+			->willReturn(false);
 		$this->urlGenerator->expects($this->at(2))
 			->method('linkToDocs')
 			->with('admin-reverse-proxy')