diff --git a/simgear/.cvsignore b/simgear/.cvsignore
index 4579a4e9..8aa876ef 100644
--- a/simgear/.cvsignore
+++ b/simgear/.cvsignore
@@ -1,6 +1,7 @@
 Makefile
 Makefile.in
 simgear_config.h
+simgear_config.h.in
 stamp-h
 stamp-h.in
 version.h