diff --git a/.hgtags b/.hgtags
index 4e13215e4..e50e600b7 100644
--- a/.hgtags
+++ b/.hgtags
@@ -65,3 +65,4 @@ ae540de68a2534213342c5e0b12afb47d7518a90 ns-3.14
 26a511d6dbad7284e66de0f3b2ad5bebe6b76405 ns-3.15
 49d343e55caec257bb01e400eef6c14522f37e1b ns-3.16
 b4a70b99171ade6e9628a87780994238950a1df1 ns-3.17
+cfbc9491d7e7c9d346cc042fd35b8afb8836e81f ns-3.18