diff --git a/src/privet/auth_manager.cc b/src/privet/auth_manager.cc
index 6a79b93..8e2bfce 100644
--- a/src/privet/auth_manager.cc
+++ b/src/privet/auth_manager.cc
@@ -51,7 +51,8 @@
   int64_t timestamp{0};
   if (!base::StringToInt64(parts[2], &timestamp))
     return kNone;
-  *time = base::Time::FromTimeT(timestamp);
+  if (time)
+    *time = base::Time::FromTimeT(timestamp);
   return UserInfo{static_cast<AuthScope>(scope), id};
 }
 
diff --git a/src/privet/auth_manager_unittest.cc b/src/privet/auth_manager_unittest.cc
index a7aa621..6a48f11 100644
--- a/src/privet/auth_manager_unittest.cc
+++ b/src/privet/auth_manager_unittest.cc
@@ -108,6 +108,7 @@
 
     auto token = auth.CreateAccessToken(UserInfo{AuthScope::kUser, 5});
     base::Time time2;
+    EXPECT_EQ(AuthScope::kNone, auth_.ParseAccessToken(token, nullptr).scope());
     EXPECT_EQ(AuthScope::kUser, auth.ParseAccessToken(token, &time2).scope());
     EXPECT_EQ(5u, auth.ParseAccessToken(token, &time2).user_id());
     // Token timestamp resolution is one second.