diff --git a/extensions/ebt_stp.c b/extensions/ebt_stp.c
index a1b2c72..8e02605 100644
--- a/extensions/ebt_stp.c
+++ b/extensions/ebt_stp.c
@@ -66,7 +66,7 @@
 "   \"config\": configuration BPDU (=0)\n"
 "   \"tcn\"   : topology change notification BPDU (=0x80)\n"
 " Recognized control flag strings:\n"
-"   \"topology-change\"    : topology change flag (0x01)"
+"   \"topology-change\"    : topology change flag (0x01)\n"
 "   \"topology-change-ack\": topology change acknowledgement flag (0x80)");
 }