1 files changed, 1 insertions, 1 deletions
diff --git a/dir.c b/dir.c
index a090b9f38c..ee58d9c656 100644
--- a/dir.c
+++ b/dir.c
@@ -2948,7 +2948,7 @@ dir_glob_option_base(VALUE base)
 static int
 dir_glob_option_sort(VALUE sort)
 {
-    return (rb_bool_expected(sort, "sort") ? 0 : FNM_GLOB_NOSORT);
+    return (rb_bool_expected(sort, "sort", TRUE) ? 0 : FNM_GLOB_NOSORT);
 }
 
 static VALUE