diff --git a/src/internal/pthread_impl.h b/src/internal/pthread_impl.h
index 102413f5..9d56e8fa 100644
--- a/src/internal/pthread_impl.h
+++ b/src/internal/pthread_impl.h
@@ -47,7 +47,9 @@ struct pthread {
 #define _m_type __u.__i[0]
 #define _m_lock __u.__i[1]
 #define _m_waiters __u.__i[2]
-#define _m_count __u.__i[4]
+#define _m_prev __u.__p[3]
+#define _m_next __u.__p[4]
+#define _m_count __u.__i[5]
 #define _c_block __u.__i[0]
 #define _c_clock __u.__i[1]
 #define _rw_wrlock __u.__i[0]