diff --git a/include/boost/unordered/detail/foa.hpp b/include/boost/unordered/detail/foa.hpp
index 29aab28e..e94b2e60 100644
--- a/include/boost/unordered/detail/foa.hpp
+++ b/include/boost/unordered/detail/foa.hpp
@@ -1022,7 +1022,8 @@ private:
 
   static group_type* dummy_groups()noexcept
   {
-    static constexpr group_type::dummy_group_type storage[size_policy::min_size()]={};
+    static constexpr group_type::dummy_group_type storage[size_policy::min_size()]=
+      {group_type::dummy_group_type(),};
     return reinterpret_cast<group_type*>(
       const_cast<group_type::dummy_group_type*>(storage));
   }