1 files changed, 1 insertions, 0 deletions
diff --git a/vm_args.c b/vm_args.c
index e7043ac897..aa8c2ec299 100644
--- a/vm_args.c
+++ b/vm_args.c
@@ -518,6 +518,7 @@ setup_parameters_complex(rb_execution_context_t * const ec, const rb_iseq_t * co
                 given_argc == ISEQ_BODY(iseq)->param.lead_num + (kw_flag ? 2 : 1) &&
                 !ISEQ_BODY(iseq)->param.flags.has_opt &&
                 !ISEQ_BODY(iseq)->param.flags.has_post &&
+                !ISEQ_BODY(iseq)->param.flags.ruby2_keywords &&
                 (!kw_flag ||
                 !ISEQ_BODY(iseq)->param.flags.has_kw ||
                 !ISEQ_BODY(iseq)->param.flags.has_kwrest ||