diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog
index d5007e2c1..fdce9f451 100644
--- a/winsup/cygwin/ChangeLog
+++ b/winsup/cygwin/ChangeLog
@@ -1,3 +1,8 @@
+2003-06-05  Christopher Faylor  <cgf@redhat.com>
+
+	* cygthread.cc (cygthread::terminate_thread): Change system_printf to
+	debug_printf.
+
 2003-06-04  Christopher Faylor  <cgf@redhat.com>
 
 	* shared.cc (shared_info::heap_chunk_size): Be really defensive about
diff --git a/winsup/cygwin/cygthread.cc b/winsup/cygwin/cygthread.cc
index 4945c5bb5..2d45f2917 100644
--- a/winsup/cygwin/cygthread.cc
+++ b/winsup/cygwin/cygthread.cc
@@ -255,7 +255,7 @@ cygthread::terminate_thread ()
   if (!m.RegionSize)
     system_printf ("m.RegionSize 0?  stack_ptr %p", stack_ptr);
   else if (!VirtualFree (m.AllocationBase, 0, MEM_RELEASE))
-    system_printf ("VirtualFree of allocation base %p<%p> failed, %E",
+    debug_printf ("VirtualFree of allocation base %p<%p> failed, %E",
 		   stack_ptr, m.AllocationBase);
 
   if (is_freerange)