1 files changed, 4 insertions, 4 deletions
diff --git a/io.c b/io.c
index d136d88192..2783a7a0d2 100644
--- a/io.c
+++ b/io.c
@@ -6186,7 +6186,7 @@ rb_io_s_popen(int argc, VALUE *argv, VALUE klass)
 }
 
 static void
-rb_scan_open_args(int argc, VALUE *argv,
+rb_scan_open_args(int argc, const VALUE *argv,
         VALUE *fname_p, int *oflags_p, int *fmode_p,
         convconfig_t *convconfig_p, mode_t *perm_p)
 {
@@ -6208,7 +6208,7 @@ rb_scan_open_args(int argc, VALUE *argv,
 }
 
 static VALUE
-rb_open_file(int argc, VALUE *argv, VALUE io)
+rb_open_file(int argc, const VALUE *argv, VALUE io)
 {
     VALUE fname;
     int oflags, fmode;
@@ -6479,7 +6479,7 @@ rb_io_open(VALUE filename, VALUE vmode, VALUE vperm, VALUE opt)
 }
 
 static VALUE
-rb_io_open_with_args(int argc, VALUE *argv)
+rb_io_open_with_args(int argc, const VALUE *argv)
 {
     VALUE io;
 
@@ -9463,7 +9463,7 @@ open_key_args(int argc, VALUE *argv, VALUE opt, struct foreach_arg *arg)
 	args = rb_ary_tmp_new(n);
 	rb_ary_push(args, path);
 	rb_ary_concat(args, v);
-	arg->io = rb_io_open_with_args((int)n, RARRAY_PTR(args));
+	arg->io = rb_io_open_with_args((int)n, RARRAY_CONST_PTR(args));
 	rb_ary_clear(args);	/* prevent from GC */
 	return;
     }