diff --git a/include/boost/unordered/detail/foa/concurrent_table.hpp b/include/boost/unordered/detail/foa/concurrent_table.hpp
index 066f49cf..cbd7611e 100644
--- a/include/boost/unordered/detail/foa/concurrent_table.hpp
+++ b/include/boost/unordered/detail/foa/concurrent_table.hpp
@@ -137,8 +137,8 @@ struct atomic_integral
 {
   operator Integral()const{return n.load(std::memory_order_acquire);}
   void operator=(Integral m){n.store(m,std::memory_order_release);}
-  void operator|=(Integral m){n.fetch_or(m,std::memory_order_release);}
-  void operator&=(Integral m){n.fetch_and(m,std::memory_order_release);}
+  void operator|=(Integral m){n.fetch_or(m,std::memory_order_acq_rel);}
+  void operator&=(Integral m){n.fetch_and(m,std::memory_order_acq_rel);}
 
   std::atomic<Integral> n;
 };