diff --git a/include/types/action.h b/include/types/action.h
index b7e1063..5a581c7 100644
--- a/include/types/action.h
+++ b/include/types/action.h
@@ -46,6 +46,11 @@
 	ACT_RET_PRS_ERR,   /* abort processing. */
 };
 
+/* flags passed to custom actions */
+enum act_flag {
+	ACT_FLAG_NONE  = 0x00000000,  /* no flag */
+};
+
 enum act_name {
 	ACT_CUSTOM = 0,
 
@@ -91,8 +96,8 @@
 	enum act_name action;                  /* ACT_ACTION_* */
 	enum act_from from;                    /* ACT_F_* */
 	short deny_status;                     /* HTTP status to return to user when denying */
-	enum act_return (*action_ptr)(struct act_rule *rule, struct proxy *px,
-	                              struct session *sess, struct stream *s); /* ptr to custom action */
+	enum act_return (*action_ptr)(struct act_rule *rule, struct proxy *px,  /* ptr to custom action */
+	                              struct session *sess, struct stream *s, int flags);
 	struct action_kw *kw;
 	union {
 		struct {