Index: boost/lockfree/queue.hpp
===================================================================
--- boost/lockfree/queue.hpp	(revision 81196)
+++ boost/lockfree/queue.hpp	(working copy)
@@ -1,4 +1,4 @@
-//  lock-free queue queue from
+//  lock-free queue from
 //  Michael, M. M. and Scott, M. L.,
 //  "simple, fast and practical non-blocking and blocking concurrent queue algorithms"
 //
Index: boost/lockfree/stack.hpp
===================================================================
--- boost/lockfree/stack.hpp	(revision 81196)
+++ boost/lockfree/stack.hpp	(working copy)
@@ -488,7 +488,7 @@
      * \return true, if stack is empty.
      *
      * \note It only guarantees that at some point during the execution of the function the stack has been empty.
-     *       It is rarely practical to use this value in program logic, because the the stack can be modified by other threads.
+     *       It is rarely practical to use this value in program logic, because the stack can be modified by other threads.
      * */
     bool empty(void) const
     {