diff --git a/include/types/stick_table.h b/include/types/stick_table.h
index 77eeccd..4f5de99 100644
--- a/include/types/stick_table.h
+++ b/include/types/stick_table.h
@@ -129,6 +129,9 @@
 struct stksess {
 	unsigned int expire;      /* session expiration date */
 	unsigned int ref_cnt;     /* reference count, can only purge when zero */
+#ifdef USE_THREAD
+	HA_RWLOCK_T lock;         /* lock related to the table entry */
+#endif
 	struct eb32_node exp;     /* ebtree node used to hold the session in expiration tree */
 	struct eb32_node upd;     /* ebtree node used to hold the update sequence tree */
 	struct ebmb_node key;     /* ebtree node used to hold the session in table */
@@ -143,6 +146,9 @@
 	struct eb_root exps;      /* head of sticky session expiration tree */
 	struct eb_root updates;   /* head of sticky updates sequence tree */
 	struct pool_head *pool;   /* pool used to allocate sticky sessions */
+#ifdef USE_THREAD
+	HA_SPINLOCK_T lock;       /* spin lock related to the table */
+#endif
 	struct task *exp_task;    /* expiration task */
 	struct task *sync_task;   /* sync task */
 	unsigned int update;