1 files changed, 0 insertions, 1 deletions
diff --git a/rubyparser.h b/rubyparser.h
index 268e8deeff..5ba2da8de1 100644
--- a/rubyparser.h
+++ b/rubyparser.h
@@ -1408,7 +1408,6 @@ typedef struct rb_parser_config_struct {
     VALUE qnil;
     VALUE qtrue;
     VALUE qfalse;
-    VALUE qundef;
     VALUE (*eArgError)(void);
     int (*long2int)(long);