diff --git a/lib/.gitignore b/lib/.gitignore
index 87d9bbdb37..f34801eac4 100644
--- a/lib/.gitignore
+++ b/lib/.gitignore
@@ -17,6 +17,7 @@ gitversion.h.tmp
 route_types.h
 memtypes.h
 command_lex.c
+command_lex.h
 command_parse.c
 command_parse.h
 refix