diff --git a/src/haproxy.c b/src/haproxy.c
index 8a4e8a5..34e8f75 100644
--- a/src/haproxy.c
+++ b/src/haproxy.c
@@ -2422,9 +2422,7 @@
 {
 	struct per_thread_init_fct   *ptif;
 	struct per_thread_deinit_fct *ptdf;
-#ifdef USE_THREAD
-	static HA_SPINLOCK_T start_lock;
-#endif
+	__decl_hathreads(static HA_SPINLOCK_T start_lock);
 
 	tid     = *((unsigned int *)data);
 	tid_bit = (1UL << tid);