diff --git a/include/linux/alloc_tag.h b/include/linux/alloc_tag.h
index afc9e259a2d3..abd24016a900 100644
--- a/include/linux/alloc_tag.h
+++ b/include/linux/alloc_tag.h
@@ -11,6 +11,7 @@
 #include <linux/preempt.h>
 #include <asm/percpu.h>
 #include <linux/cpumask.h>
+#include <linux/smp.h>
 #include <linux/static_key.h>
 #include <linux/irqflags.h>