diff --git a/target/rx/op_helper.c b/target/rx/op_helper.c
index 11f952d340..81645adde3 100644
--- a/target/rx/op_helper.c
+++ b/target/rx/op_helper.c
@@ -448,6 +448,7 @@ void QEMU_NORETURN helper_wait(CPURXState *env)
 
     cs->halted = 1;
     env->in_sleep = 1;
+    env->psw_i = 1;
     raise_exception(env, EXCP_HLT, 0);
 }