diff --git a/.cvsignore b/.cvsignore
index 4888270d041104f688d683986188bb1e6e7776d7..cf10d1b625130035c0adf603e5933e0877e09d2b 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 062f77203dff6eebd2f60a2ea34d00342523229c..5a602dd717c25b676621d85dd7ad6f6c2a8b6bfb 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