diff --git a/lib/.gitignore b/lib/.gitignore
index 926e145..06657d5 100644
--- a/lib/.gitignore
+++ b/lib/.gitignore
@@ -112,6 +112,7 @@ Makefile.am
 /c++defs.h
 /charset.alias
 /configmake.h
+/getopt-cdefs.h
 /getopt.h
 /iconv.h
 /iconv_open-aix.h