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-rw-r--r--openbsc/src/libmsc/smpp_vty.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/openbsc/src/libmsc/smpp_vty.c b/openbsc/src/libmsc/smpp_vty.c
index adea9590e..a2270e62a 100644
--- a/openbsc/src/libmsc/smpp_vty.c
+++ b/openbsc/src/libmsc/smpp_vty.c
@@ -119,7 +119,7 @@ static int config_write_smpp(struct vty *vty)
vty_out(vty, "smpp%s", VTY_NEWLINE);
vty_out(vty, " local-tcp-port %u%s", smsc->listen_port, VTY_NEWLINE);
- if (smsc->system_id)
+ if (smsc->system_id && strlen(smsc->system_id) > 0)
vty_out(vty, " system-id %s%s", smsc->system_id, VTY_NEWLINE);
vty_out(vty, " policy %s%s",
smsc->accept_all ? "accept-all" : "closed", VTY_NEWLINE);