1 files changed, 1 insertions, 0 deletions
diff --git a/compile.c b/compile.c
index 849d4a5a5e..bd34fa8a4b 100644
--- a/compile.c
+++ b/compile.c
@@ -5329,6 +5329,7 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 	{
 	    VALUE str = rb_fstring(node->nd_args->nd_head->nd_lit);
 	    node->nd_args->nd_head->nd_lit = str;
+	    iseq_add_mark_object(iseq, str);
 	    COMPILE(ret, "recv", node->nd_recv);
 	    COMPILE(ret, "value", node->nd_args->nd_next->nd_head);
 	    ADD_INSN2(ret, line, opt_aset_with,