diff --git a/include/haproxy/list.h b/include/haproxy/list.h
index 1e45b63..9d37649 100644
--- a/include/haproxy/list.h
+++ b/include/haproxy/list.h
@@ -244,6 +244,7 @@
 		if ((el)->next != (el) || (el)->prev != (el)) {            \
 			(n)->prev = p;                                     \
 			(lh)->next = n;                                    \
+			__ha_barrier_store();                              \
 			break;                                             \
 		}                                                          \
 		(el)->next = n;                                            \
@@ -283,6 +284,7 @@
 		if ((el)->next != (el) || (el)->prev != (el)) {            \
 			p->next = n;                                       \
 			(lh)->prev = p;                                    \
+			__ha_barrier_store();                              \
 			break;                                             \
 		}                                                          \
 		(el)->next = n;                                            \