diff --git a/include/linux/sched/clock.h b/include/linux/sched/clock.h
index ac12f71d359c..4a68c6791207 100644
--- a/include/linux/sched/clock.h
+++ b/include/linux/sched/clock.h
@@ -1,7 +1,7 @@
 #ifndef _LINUX_SCHED_CLOCK_H
 #define _LINUX_SCHED_CLOCK_H
 
-#include <linux/sched.h>
+#include <linux/smp.h>
 
 /*
  * Do not use outside of architecture code which knows its limitations.