diff --git a/cpukit/ChangeLog b/cpukit/ChangeLog
index ca76d3a7e3..65a4a431ae 100644
--- a/cpukit/ChangeLog
+++ b/cpukit/ChangeLog
@@ -1,3 +1,10 @@
+2004-07-25	Victor Vengerov <Victor.Vengerov@oktetlabs.ru>
+
+	PR 654/rtems
+	* score/src/threadinitialize.c: Initialize the per thread watchdog
+	timer. When the thread control block is reused, we cannot depend on
+	it being zeroed.
+
 2004-07-24	Mick Davis <mickd@microsol.iinet.net.au>
 
 	PR 641/rtems
diff --git a/cpukit/score/src/threadinitialize.c b/cpukit/score/src/threadinitialize.c
index 9a3649865d..319a3abea9 100644
--- a/cpukit/score/src/threadinitialize.c
+++ b/cpukit/score/src/threadinitialize.c
@@ -24,6 +24,7 @@
 #include <rtems/score/thread.h>
 #include <rtems/score/threadq.h>
 #include <rtems/score/userext.h>
+#include <rtems/score/watchdog.h>
 #include <rtems/score/wkspace.h>
 
 /*PAGE
@@ -114,6 +115,11 @@ boolean _Thread_Initialize(
   the_thread->Start.fp_context = fp_area;
 #endif
 
+  /*
+   *  Initialize the thread timer
+   */
+  _Watchdog_Initialize( &the_thread->Timer, NULL, 0, NULL );
+
   /*
    * Clear the libc reent hook.
    */