diff --git a/mm/percpu.c b/mm/percpu.c
index 36e7b65ba6cf3f739a266b8cb4f93f5fbe6bc763..15a398c00791443d7694247c648f2e4f57329235 100644
--- a/mm/percpu.c
+++ b/mm/percpu.c
@@ -80,6 +80,7 @@
 #include <linux/vmalloc.h>
 #include <linux/workqueue.h>
 #include <linux/kmemleak.h>
+#include <linux/sched.h>
 
 #include <asm/cacheflush.h>
 #include <asm/sections.h>