diff --git a/isisd/topology/.cvsignore b/isisd/topology/.cvsignore
index 055f40c..bf4f60a 100644
--- a/isisd/topology/.cvsignore
+++ b/isisd/topology/.cvsignore
@@ -4,3 +4,4 @@
 tags
 TAGS
 .deps
+.nfs*