diff --git a/include/boost/unordered/detail/foa/concurrent_table.hpp b/include/boost/unordered/detail/foa/concurrent_table.hpp
index fd413805..c016cf68 100644
--- a/include/boost/unordered/detail/foa/concurrent_table.hpp
+++ b/include/boost/unordered/detail/foa/concurrent_table.hpp
@@ -512,7 +512,8 @@ public:
     retired_element_allocator_type ral=this->al();
     for(std::size_t i=0;i<garbage_vectors.size();++i){
       auto& v=garbage_vectors[i];
-      v.epoch_bump=(i*251)%garbage_vector::min_for_epoch_bump;
+      //v.epoch_bump=(i*251)%garbage_vector::min_for_epoch_bump;
+      v.epoch_bump=i==0?0:garbage_vector::min_for_epoch_bump+1;
       v.retired_elements=retired_element_traits::allocate(
         ral,garbage_vector::N);
       for(std::size_t j=0;j<garbage_vector::N;++j){
@@ -2031,7 +2032,7 @@ private:
         //++garbage_collected;
         auto p=e.p.load();
         this->destroy_element(p);
-        auto pos=static_cast<std::size_t>(e.p-this->arrays.elements());
+        auto pos=static_cast<std::size_t>(p-this->arrays.elements());
         this->arrays.groups()[pos/N].reset(pos%N);
         e.epoch=retired_element::available_;
         ++rpos;