diff --git a/include/boost/unordered/detail/foa/table.hpp b/include/boost/unordered/detail/foa/table.hpp
index c9a1c93d..3145a14d 100644
--- a/include/boost/unordered/detail/foa/table.hpp
+++ b/include/boost/unordered/detail/foa/table.hpp
@@ -420,7 +420,7 @@ public:
   using super::reserve;
 
   template<typename Predicate>
-  friend std::size_t erase_if(table& x,Predicate&& pr)
+  friend std::size_t erase_if(table& x,Predicate& pr)
   {
     std::size_t s=x.size();
     x.for_all_elements(