diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog
index cbc798001..0ad9a78ce 100644
--- a/winsup/cygwin/ChangeLog
+++ b/winsup/cygwin/ChangeLog
@@ -1,3 +1,7 @@
+2003-10-27  Thomas Pfaff  <tpfaff@gmx.net>
+
+	* thread.h (fast_mutex::init): Initialize lock_counter.
+
 2003-10-27  Corinna Vinschen  <corinna@vinschen.de>
 
 	* Makefile.in (OBSOLETE_FUNCTION):  Add tmpfile.
diff --git a/winsup/cygwin/thread.h b/winsup/cygwin/thread.h
index d6fffedb8..579bb184e 100644
--- a/winsup/cygwin/thread.h
+++ b/winsup/cygwin/thread.h
@@ -140,6 +140,7 @@ public:
 
   bool init ()
   {
+    lock_counter = 0;
     win32_obj_id = ::CreateSemaphore (&sec_none_nih, 0, LONG_MAX, NULL);
     if (!win32_obj_id)
       {