diff --git a/kernel/smp.c b/kernel/smp.c
index da8562ce07d8..256d068629b5 100644
--- a/kernel/smp.c
+++ b/kernel/smp.c
@@ -958,7 +958,7 @@ void wake_up_all_idle_cpus(void)
 		if (cpu == smp_processor_id())
 			continue;
 
-#if CONFIG_SUSPEND
+#if IS_ENABLED(CONFIG_SUSPEND)
 		if (s2idle_state == S2IDLE_STATE_ENTER || cpu_active(cpu))
 #endif
 			wake_up_if_idle(cpu);