diff --git a/include/boost/intrusive/bstree.hpp b/include/boost/intrusive/bstree.hpp
index 22314ac..972a236 100644
--- a/include/boost/intrusive/bstree.hpp
+++ b/include/boost/intrusive/bstree.hpp
@@ -1273,7 +1273,7 @@ class bstree_impl
       node_algorithms::push_front(this->header_ptr(), to_insert);
    }
 
-   //! <b>Effects</b>: Erases the element pointed to by pos.
+   //! <b>Effects</b>: Erases the element pointed to by i.
    //!
    //! <b>Complexity</b>: Average complexity for erase element is constant time.
    //!
@@ -1346,7 +1346,7 @@ class bstree_impl
 
    //! <b>Requires</b>: Disposer::operator()(pointer) shouldn't throw.
    //!
-   //! <b>Effects</b>: Erases the element pointed to by pos.
+   //! <b>Effects</b>: Erases the element pointed to by i.
    //!   Disposer::operator()(pointer) is called for the removed element.
    //!
    //! <b>Complexity</b>: Average complexity for erase element is constant time.
diff --git a/include/boost/intrusive/treap.hpp b/include/boost/intrusive/treap.hpp
index 8ed2621..b7d7df0 100644
--- a/include/boost/intrusive/treap.hpp
+++ b/include/boost/intrusive/treap.hpp
@@ -713,7 +713,7 @@ class treap_impl
       this->tree_type::sz_traits().increment();
    }
 
-   //! <b>Effects</b>: Erases the element pointed to by pos.
+   //! <b>Effects</b>: Erases the element pointed to by i.
    //!
    //! <b>Complexity</b>: Average complexity for erase element is constant time.
    //!
@@ -789,7 +789,7 @@ class treap_impl
 
    //! <b>Requires</b>: Disposer::operator()(pointer) shouldn't throw.
    //!
-   //! <b>Effects</b>: Erases the element pointed to by pos.
+   //! <b>Effects</b>: Erases the element pointed to by i.
    //!   Disposer::operator()(pointer) is called for the removed element.
    //!
    //! <b>Complexity</b>: Average complexity for erase element is constant time.