diff --git a/.cvsignore b/.cvsignore
index 95de48357304a1134c1f030cc1138e9f3692a03b..f2568ddc9d6d0a877c6f9d176f22db72ca2f32bf 100644
--- a/.cvsignore
+++ b/.cvsignore
@@ -10,6 +10,7 @@ mud
 mud-0.1.tar.gz
 mud-0.2.tar.gz
 mudlib
+ntbuild
 obsolete
 reports
 smap
diff --git a/.gitignore b/.gitignore
index 0e6b496a28e596a9dc5f30555651a574f4cce4f0..f342c07aaca21f9665a16f17f2c1f4d3632e2247 100644
--- a/.gitignore
+++ b/.gitignore
@@ -42,6 +42,7 @@ core
 /mud-0.1.tar.gz
 /mud-0.2.tar.gz
 /mudlib
+/ntbuild
 /obsolete
 /reports
 /smap