1 files changed, 1 insertions, 1 deletions
diff --git a/array.c b/array.c
index d8d09f8e96..1d2202b815 100644
--- a/array.c
+++ b/array.c
@@ -1562,7 +1562,7 @@ rb_ary_sort_bang(VALUE ary)
 	RARRAY(tmp)->ptr = 0;
 	RARRAY(tmp)->len = 0;
 	RARRAY(tmp)->aux.capa = 0;
-	RBASIC(tmp)->klass = RBASIC(ary)->klass;
+	RBASIC(tmp)->klass = rb_cArray;
     }
     return ary;
 }