diff --git a/parse.y b/parse.y
index 3763dabf3a..9cb94fd644 100644
--- a/parse.y
+++ b/parse.y
@@ -11307,12 +11307,6 @@ ripper_initialize(int argc, VALUE *argv, VALUE self)
     return Qnil;
 }
 
-struct ripper_args {
-    struct parser_params *p;
-    int argc;
-    VALUE *argv;
-};
-
 static VALUE
 ripper_parse0(VALUE parser_v)
 {