diff --git a/arch/ia64/ia32/ia32priv.h b/arch/ia64/ia32/ia32priv.h
index 68ceb4e..ccb98ed 100644
--- a/arch/ia64/ia32/ia32priv.h
+++ b/arch/ia64/ia32/ia32priv.h
@@ -29,9 +29,9 @@
 struct partial_page {
 	struct partial_page	*next; /* linked list, sorted by address */
 	struct rb_node		pp_rb;
-	/* 64K is the largest "normal" page supported by ia64 ABI. So 4K*32
+	/* 64K is the largest "normal" page supported by ia64 ABI. So 4K*64
 	 * should suffice.*/
-	unsigned int		bitmap;
+	unsigned long		bitmap;
 	unsigned int		base;
 };