diff --git a/src/include/cpu/x86/lapic.h b/src/include/cpu/x86/lapic.h
index 2215ec7..078f2a7 100644
--- a/src/include/cpu/x86/lapic.h
+++ b/src/include/cpu/x86/lapic.h
@@ -147,7 +147,7 @@
 
 void setup_lapic(void);
 
-#if CONFIG_SMP == 1
+#if CONFIG_SMP
 struct device;
 int start_cpu(struct device *cpu);
 #endif /* CONFIG_SMP */