diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog
index 42482a6dc..0fa6ae4a8 100644
--- a/winsup/cygwin/ChangeLog
+++ b/winsup/cygwin/ChangeLog
@@ -1,3 +1,8 @@
+2000-05-08  Paul K. Fisher  <pfisher@plexware.com>
+
+	* include/pthread.h (pthread_detach): Add missing prototype.
+	(pthread_join): same.
+
 2000-05-08  DJ Delorie  <dj@cygnus.com>
 
 	* fhandler.cc (lock): use signed math to allow checking ranges
diff --git a/winsup/cygwin/include/pthread.h b/winsup/cygwin/include/pthread.h
index 4826e0897..90bf5c28c 100644
--- a/winsup/cygwin/include/pthread.h
+++ b/winsup/cygwin/include/pthread.h
@@ -49,10 +49,10 @@ int pthread_attr_init (pthread_attr_t * attr);
 int pthread_attr_destroy (pthread_attr_t * attr);
 int pthread_attr_setstacksize (pthread_attr_t * attr, size_t size);
 int pthread_attr_getstacksize (pthread_attr_t * attr, size_t * size);
-/*
- pthread_attr_setstackaddr(...);
- pthread_attr_getstackaddr(...);
-*/
+
+/* Thread Control */
+int pthread_detach (pthread_t thread);
+int pthread_join (pthread_t thread, void **value_ptr);
 
 /* Thread Exit */
 int pthread_exit (void *value_ptr);