diff --git a/include/types/session.h b/include/types/session.h
index e4e393b..45d2df1 100644
--- a/include/types/session.h
+++ b/include/types/session.h
@@ -41,6 +41,7 @@
 	enum obj_type *origin;          /* the connection / applet which initiated this session */
 	struct timeval accept_date;     /* date of the session's accept() in user date */
 	struct timeval tv_accept;       /* date of the session's accept() in internal date (monotonic) */
+	struct stkctr stkctr[MAX_SESS_STKCTR];  /* stick counters for tcp-connection */
 };
 
 #endif /* _TYPES_SESSION_H */
diff --git a/include/types/stream.h b/include/types/stream.h
index b83f655..be28568 100644
--- a/include/types/stream.h
+++ b/include/types/stream.h
@@ -139,7 +139,7 @@
 	int store_count;
 	/* 4 unused bytes here */
 
-	struct stkctr stkctr[MAX_SESS_STKCTR];  /* stick counters */
+	struct stkctr stkctr[MAX_SESS_STKCTR];  /* content-aware stick counters */
 
 	char **req_cap;                         /* array of captures from the request (may be NULL) */
 	char **res_cap;                         /* array of captures from the response (may be NULL) */