1 files changed, 3 insertions, 0 deletions
diff --git a/iseq.c b/iseq.c
index 9b32c0a20d..fa89f512d8 100644
--- a/iseq.c
+++ b/iseq.c
@@ -338,7 +338,9 @@ static rb_compile_option_t COMPILE_OPTION_DEFAULT = {
     OPT_INSTRUCTIONS_UNIFICATION, /* int instructions_unification; */
     OPT_STACK_CACHING, /* int stack_caching; */
     OPT_TRACE_INSTRUCTION, /* int trace_instruction */
+    OPT_FROZEN_STRING_LITERAL
 };
+
 static const rb_compile_option_t COMPILE_OPTION_FALSE = {0};
 
 static void
@@ -375,6 +377,7 @@ make_compile_option(rb_compile_option_t *option, VALUE opt)
 	SET_COMPILE_OPTION(option, opt, instructions_unification);
 	SET_COMPILE_OPTION(option, opt, stack_caching);
 	SET_COMPILE_OPTION(option, opt, trace_instruction);
+	SET_COMPILE_OPTION(option, opt, frozen_string_literal);
 	SET_COMPILE_OPTION_NUM(option, opt, debug_level);
 #undef SET_COMPILE_OPTION
 #undef SET_COMPILE_OPTION_NUM