diff --git a/.cvsignore b/.cvsignore
index d35853d5..050a3c52 100644
--- a/.cvsignore
+++ b/.cvsignore
@@ -1,6 +1,7 @@
 Makefile
 Makefile.in
 SimGear.spec
+aclocal.m4
 config.cache
 config.log
 config.status