diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog
index 2f2a6fc8a..9439d8e1a 100644
--- a/winsup/cygwin/ChangeLog
+++ b/winsup/cygwin/ChangeLog
@@ -1,3 +1,7 @@
+2005-09-23  Christopher Faylor  <cgf@timesys.com>
+
+	* shared.cc (open_shared): Add crucial bit of debugging info.
+
 2005-09-23  Christopher Faylor  <cgf@timesys.com>
 
 	Semi-reversion of always-exit-from-sigthread change of 2005-09-15.
diff --git a/winsup/cygwin/shared.cc b/winsup/cygwin/shared.cc
index fd20766a3..02c512f17 100644
--- a/winsup/cygwin/shared.cc
+++ b/winsup/cygwin/shared.cc
@@ -155,7 +155,7 @@ open_shared (const char *name, int n, HANDLE& shared_h, DWORD size,
 #endif
     }
 
-  debug_printf ("name %s, shared %p (wanted %p), h %p", name, shared, addr, shared_h);
+  debug_printf ("name %s, n %d, shared %p (wanted %p), h %p", name, n, shared, addr, shared_h);
 
   return shared;
 }