diff --git a/arch/sh/mm/pgtable.c b/arch/sh/mm/pgtable.c
index 6f21fb1..26e03a1 100644
--- a/arch/sh/mm/pgtable.c
+++ b/arch/sh/mm/pgtable.c
@@ -1,4 +1,5 @@
 #include <linux/mm.h>
+#include <linux/slab.h>
 
 #define PGALLOC_GFP GFP_KERNEL | __GFP_REPEAT | __GFP_ZERO