diff --git a/openbsc/src/libbsc/bsc_vty.c b/openbsc/src/libbsc/bsc_vty.c
index 61b0911..dfe80c9 100644
--- a/openbsc/src/libbsc/bsc_vty.c
+++ b/openbsc/src/libbsc/bsc_vty.c
@@ -1379,7 +1379,7 @@
 DECLARE_TIMER(3103, "Set the timeout value for HANDOVER.\n")
 DECLARE_TIMER(3105, "Set the timer for repetition of PHYSICAL INFORMATION.\n")
 DECLARE_TIMER(3107, "Currently not used.\n")
-DECLARE_TIMER(3109, "Currently not used.\n")
+DECLARE_TIMER(3109, "Set the RSL SACCH deactivation timeout.\n")
 DECLARE_TIMER(3111, "Set the RSL timeout to wait before releasing the RF Channel.\n")
 DECLARE_TIMER(3113, "Set the time to try paging a subscriber.\n")
 DECLARE_TIMER(3115, "Currently not used.\n")