diff --git a/parallel_hashmap/phmap.h b/parallel_hashmap/phmap.h
index dca52bf..406697a 100644
--- a/parallel_hashmap/phmap.h
+++ b/parallel_hashmap/phmap.h
@@ -3401,7 +3401,7 @@ public:
     template <class K = key_type, class V = mapped_type>
     bool contains(const key_arg<K>& key, V& v) const {
         typename Lockable::SharedLock m;
-        auto it = const_cast<parallel_hash_map *>(this)->find(key, hash(key), m);
+        auto it = const_cast<parallel_hash_map *>(this)->find(key, Base::hash(key), m);
         if (it == this->end())
             return false;
         v = Policy::value(&*it);
@@ -3411,7 +3411,7 @@ public:
     template <class K = key_type, class F>
     bool if_contains(const key_arg<K>& key, F&& f) const {
         typename Lockable::SharedLock m;
-        auto it = const_cast<parallel_hash_map*>(this)->find(key, hash(key), m);
+        auto it = const_cast<parallel_hash_map*>(this)->find(key, Base::hash(key), m);
         if (it == this->end())
             return false;
         std::forward<F>(f)(Policy::value(&*it));