1 files changed, 2 insertions, 2 deletions
diff --git a/compile.c b/compile.c
index 811160ad11..68aeb4cfce 100644
--- a/compile.c
+++ b/compile.c
@@ -5971,7 +5971,7 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *const ret, NODE *node, int poppe
       }
       case NODE_SCLASS:{
 	ID singletonclass;
-	const rb_iseq_t *singleton_class = NEW_ISEQ(node->nd_body, rb_str_new2("singleton class"),
+	const rb_iseq_t *singleton_class = NEW_ISEQ(node->nd_body, rb_fstring_cstr("singleton class"),
 						    ISEQ_TYPE_CLASS, line);
 
 	CHECK(COMPILE(ret, "sclass#recv", node->nd_recv));
@@ -6515,7 +6515,7 @@ rb_insns_name_array(void)
     VALUE ary = rb_ary_new();
     int i;
     for (i = 0; i < numberof(insn_name_info); i++) {
-	rb_ary_push(ary, rb_fstring(rb_str_new2(insn_name_info[i])));
+	rb_ary_push(ary, rb_fstring_cstr(insn_name_info[i]));
     }
     return rb_obj_freeze(ary);
 }