diff --git a/sysdeps/unix/sysv/linux/alpha/nptl/bits/pthreadtypes.h b/sysdeps/unix/sysv/linux/alpha/nptl/bits/pthreadtypes.h
index cb916917e5..41a54d4b0d 100644
--- a/sysdeps/unix/sysv/linux/alpha/nptl/bits/pthreadtypes.h
+++ b/sysdeps/unix/sysv/linux/alpha/nptl/bits/pthreadtypes.h
@@ -43,6 +43,13 @@ typedef union
 } pthread_attr_t;
 
 
+typedef struct __pthread_internal_list
+{
+  struct __pthread_internal_list *__prev;
+  struct __pthread_internal_list *__next;
+} __pthread_list_t;
+
+
 /* Data structures for mutex handling.  The structure of the attribute
    type is deliberately not exposed.  */
 typedef union
@@ -57,8 +64,7 @@ typedef union
        binary compatibility.  */
     int __kind;
     int __spins;
-    struct __pthread_mutex_s *__next;
-    struct __pthread_mutex_s *__prev;
+    __pthread_list_t __list;
 #define __PTHREAD_MUTEX_HAVE_PREV	1
   } __data;
   char __size[__SIZEOF_PTHREAD_MUTEX_T];