diff --git a/sysdeps/unix/sysv/linux/alpha/nptl/bits/pthreadtypes.h b/sysdeps/unix/sysv/linux/alpha/nptl/bits/pthreadtypes.h
index 62c853cee9..fd20d572af 100644
--- a/sysdeps/unix/sysv/linux/alpha/nptl/bits/pthreadtypes.h
+++ b/sysdeps/unix/sysv/linux/alpha/nptl/bits/pthreadtypes.h
@@ -81,7 +81,7 @@ typedef union
     unsigned long long int __wakeup_seq;
     unsigned long long int __woken_seq;
     void *__mutex;
-    int __clock;
+    unsigned int __nwaiters;
     unsigned int __broadcast_seq;
   } __data;
   char __size[__SIZEOF_PTHREAD_COND_T];