--- a/security/manager/ssl/tests/gtest/DataStorageTest.cpp
+++ b/security/manager/ssl/tests/gtest/DataStorageTest.cpp
@@ -14,17 +14,17 @@
 #include "nsStreamUtils.h"
 #include "prtime.h"
 
 using namespace mozilla;
 
 class psm_DataStorageTest : public ::testing::Test
 {
 protected:
-  virtual void SetUp()
+  void SetUp() override
   {
     const ::testing::TestInfo* const testInfo =
       ::testing::UnitTest::GetInstance()->current_test_info();
     NS_ConvertUTF8toUTF16 testName(testInfo->name());
     storage = DataStorage::Get(testName);
     storage->Init(dataWillPersist);
   }