diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog
index afd6ccddc..feabd3eac 100644
--- a/winsup/cygwin/ChangeLog
+++ b/winsup/cygwin/ChangeLog
@@ -1,3 +1,7 @@
+2007-11-06  Corinna Vinschen  <corinna@vinschen.de>
+
+	* thread.cc (pthread_key_create): Drop check for incoming valid object.
+
 2007-11-06  Corinna Vinschen  <corinna@vinschen.de>
 
 	* shm.cc: Include sync.h
diff --git a/winsup/cygwin/thread.cc b/winsup/cygwin/thread.cc
index f04413cfd..96397f5b0 100644
--- a/winsup/cygwin/thread.cc
+++ b/winsup/cygwin/thread.cc
@@ -2250,11 +2250,6 @@ pthread_getschedparam (pthread_t thread, int *policy,
 extern "C" int
 pthread_key_create (pthread_key_t *key, void (*destructor) (void *))
 {
-  /* The opengroup docs don't define if we should check this or not,
-     but creation is relatively rare.  */
-  if (pthread_key::is_good_object (key))
-    return EBUSY;
-
   *key = new pthread_key (destructor);
 
   if (!pthread_key::is_good_object (key))