diff --git a/arch/m68k/include/asm/page_no.h b/arch/m68k/include/asm/page_no.h
index 9aa3f90f4855b85ade95e2977cf9422e397d32f6..1f31b060cc8da823b2fe065cfa2f0bf783447417 100644
--- a/arch/m68k/include/asm/page_no.h
+++ b/arch/m68k/include/asm/page_no.h
@@ -1,10 +1,12 @@
 #ifndef _M68KNOMMU_PAGE_H
 #define _M68KNOMMU_PAGE_H
 
+#include <linux/const.h>
+
 /* PAGE_SHIFT determines the page size */
 
 #define PAGE_SHIFT	(12)
-#define PAGE_SIZE	(1UL << PAGE_SHIFT)
+#define PAGE_SIZE	(_AC(1,UL) << PAGE_SHIFT)
 #define PAGE_MASK	(~(PAGE_SIZE-1))
 
 #include <asm/setup.h>