diff --git a/policy_manager/variable.h b/policy_manager/variable.h
index cd13be1..e855e03 100644
--- a/policy_manager/variable.h
+++ b/policy_manager/variable.h
@@ -174,6 +174,7 @@
   // directly from the variable.
   friend class EvaluationContext;
 
+  friend class PmRealConfigProviderTest;
   friend class PmRealDevicePolicyProviderTest;
   FRIEND_TEST(PmRealDevicePolicyProviderTest,
               NonExistentDevicePolicyEmptyVariables);