diff --git a/include/boost/pending/iterator_tests.hpp b/include/boost/pending/iterator_tests.hpp
index 9bde614..3abdccc 100644
--- a/include/boost/pending/iterator_tests.hpp
+++ b/include/boost/pending/iterator_tests.hpp
@@ -5,6 +5,9 @@
 // test suite for STL concepts such as iterators and containers.
 //
 // Revision History:
+// 08 Feb 2001  Fixed bidirectional iterator test so that
+//              --i is no longer a precondition.
+//              (Jeremy Siek)
 // 04 Feb 2001  Added lvalue test, corrected preconditions
 //              (David Abrahams)
 
@@ -125,7 +128,7 @@ void forward_iterator_test(Iterator i, T v1, T v2)
 #endif
 }
 
-// Preconditions: *i == v1, *++i == v2, --i
+// Preconditions: *i == v1, *++i == v2
 template <class Iterator, class T>
 void bidirectional_iterator_test(Iterator i, T v1, T v2)
 {
@@ -143,8 +146,8 @@ void bidirectional_iterator_test(Iterator i, T v1, T v2)
   --i;
   assert(i == i1);
   assert(i == i2);
-  --i1;
-  --i2;
+  ++i1;
+  ++i2;
 
   trivial_iterator_test(i, i1, v1);
   trivial_iterator_test(i, i2, v1);
@@ -152,7 +155,7 @@ void bidirectional_iterator_test(Iterator i, T v1, T v2)
 
 // mutable_bidirectional_iterator_test
 
-// Preconditions: [i-1,i+N) is a valid range
+// Preconditions: [i,i+N) is a valid range
 template <class Iterator, class TrueVals>
 void random_access_iterator_test(Iterator i, int N, TrueVals vals)
 {