diff --git a/src/.cvsignore b/src/.cvsignore
index 29a648189..74d6bb71a 100644
--- a/src/.cvsignore
+++ b/src/.cvsignore
@@ -6,7 +6,7 @@ nghelp
 ngsconvert
 ngproc2mod
 multidec
-makeidx
+ngmakeidx
 ngspice
 ngnutmeg
 ngmultidec