1 files changed, 2 insertions, 0 deletions
diff --git a/compile.c b/compile.c
index 9e9e177231..797e983816 100644
--- a/compile.c
+++ b/compile.c
@@ -5177,6 +5177,7 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *const ret, NODE *node, int poppe
 	    nd_type(node->nd_args) == NODE_ARRAY && node->nd_args->nd_alen == 1 &&
 	    nd_type(node->nd_args->nd_head) == NODE_STR &&
 	    ISEQ_COMPILE_DATA(iseq)->current_block == NULL &&
+            !ISEQ_COMPILE_DATA(iseq)->option->frozen_string_literal &&
 	    ISEQ_COMPILE_DATA(iseq)->option->specialized_instruction) {
 	    VALUE str = rb_fstring(node->nd_args->nd_head->nd_lit);
 	    node->nd_args->nd_head->nd_lit = str;
@@ -6229,6 +6230,7 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *const ret, NODE *node, int poppe
 	    nd_type(node->nd_args) == NODE_ARRAY && node->nd_args->nd_alen == 2 &&
 	    nd_type(node->nd_args->nd_head) == NODE_STR &&
 	    ISEQ_COMPILE_DATA(iseq)->current_block == NULL &&
+            !ISEQ_COMPILE_DATA(iseq)->option->frozen_string_literal &&
 	    ISEQ_COMPILE_DATA(iseq)->option->specialized_instruction)
 	{
 	    VALUE str = rb_fstring(node->nd_args->nd_head->nd_lit);