diff --git a/build-aux/.cvsignore b/build-aux/.cvsignore
index 3acd45ae4..e91fbeb9d 100644
--- a/build-aux/.cvsignore
+++ b/build-aux/.cvsignore
@@ -7,5 +7,6 @@ gnupload
 install-sh
 mdate-sh
 missing
+mkinstalldirs
 texinfo.tex
 ylwrap