diff --git a/xen/include/asm-ia64/grant_table.h b/xen/include/asm-ia64/grant_table.h
index 763361e23a..5bf3f68bd0 100644
--- a/xen/include/asm-ia64/grant_table.h
+++ b/xen/include/asm-ia64/grant_table.h
@@ -16,7 +16,7 @@
 
 #define gnttab_shared_mfn(d, t, i)                                      \
     ( ((d) == dom0) ?                                                   \
-      ((virt_to_phys((t)shared) >> PAGE_SHIFT) + (i)) :                 \
+      ((virt_to_phys((t)->shared) >> PAGE_SHIFT) + (i)) :               \
       (map_domain_page((d), 1UL<<40, virt_to_phys((t)->shared)),        \
        1UL << (40 - PAGE_SHIFT))                                        \
     )
diff --git a/xen/include/asm-ia64/mm.h b/xen/include/asm-ia64/mm.h
index 899f37b690..8ab80ab5dc 100644
--- a/xen/include/asm-ia64/mm.h
+++ b/xen/include/asm-ia64/mm.h
@@ -82,7 +82,7 @@ struct page
 #define PGT_l2_page_table   (2<<29) /* using this page as an L2 page table? */
 #define PGT_l3_page_table   (3<<29) /* using this page as an L3 page table? */
 #define PGT_l4_page_table   (4<<29) /* using this page as an L4 page table? */
-#define PGT_writeable_page  (5<<29) /* has writable mappings of this page? */
+#define PGT_writable_page   (5<<29) /* has writable mappings of this page? */
 #define PGT_type_mask       (5<<29) /* Bits 29-31. */
 
  /* Has this page been validated for use as its current type? */