diff --git a/arch/mips/mm/highmem.c b/arch/mips/mm/highmem.c
index e274fda329f4e5bc9ef0a90484972b650390e2b0..127d732474bf0ceb63dd38c75db8d0cfde1312c0 100644
--- a/arch/mips/mm/highmem.c
+++ b/arch/mips/mm/highmem.c
@@ -1,5 +1,6 @@
 #include <linux/module.h>
 #include <linux/highmem.h>
+#include <linux/sched.h>
 #include <linux/smp.h>
 #include <asm/fixmap.h>
 #include <asm/tlbflush.h>