diff --git a/cxxmph/mph_index.h b/cxxmph/mph_index.h
index 3083a60..3afc518 100644
--- a/cxxmph/mph_index.h
+++ b/cxxmph/mph_index.h
@@ -184,6 +184,8 @@ class SimpleMPHIndex : public MPHIndex {
     return MPHIndex::Reset<HashFcn>(begin, end);
   }
   uint32_t index(const Key& key) const { return MPHIndex::index<HashFcn>(key); }
+  uint32_t perfect_hash(const Key& key) const { return MPHIndex::perfect_hash<HashFcn>(key); }
+  uint32_t minimal_perfect_hash(const Key& key) const { return MPHIndex::minimal_perfect_hash<HashFcn>(key); }
 };
 
 }  // namespace cxxmph