diff --git a/ChangeLog b/ChangeLog
index 70e0a25eda..04a2647d90 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2017-07-06  Matthew Krupcale  <mkrupcale@matthewkrupcale.com>
+
+	[BZ #21715]
+	* sysdeps/nptl/bits/pthreadtypes.h (__have_pthread_attr_t): Fix typo
+	on definition.
+
 2017-07-06  Florian Weimer  <fweimer@redhat.com>
 	    H.J. Lu  <hongjiu.lu@intel.com>
 
diff --git a/sysdeps/nptl/bits/pthreadtypes.h b/sysdeps/nptl/bits/pthreadtypes.h
index 8839559f5a..0941e9eb96 100644
--- a/sysdeps/nptl/bits/pthreadtypes.h
+++ b/sysdeps/nptl/bits/pthreadtypes.h
@@ -60,7 +60,7 @@ union pthread_attr_t
 };
 #ifndef __have_pthread_attr_t
 typedef union pthread_attr_t pthread_attr_t;
-# define __have_pthread_attr_t1
+# define __have_pthread_attr_t 1
 #endif