diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c
index 1c30e4ab1022bda71ff80d841509605ae07034cc..387b60d9bd0ee3995aab148468be0fa6ddc335b5 100644
--- a/arch/x86/xen/setup.c
+++ b/arch/x86/xen/setup.c
@@ -829,6 +829,8 @@ char * __init xen_memory_setup(void)
 	addr = xen_e820_map[0].addr;
 	size = xen_e820_map[0].size;
 	while (i < xen_e820_map_entries) {
+		bool discard = false;
+
 		chunk_size = size;
 		type = xen_e820_map[i].type;
 
@@ -843,10 +845,11 @@ char * __init xen_memory_setup(void)
 				xen_add_extra_mem(pfn_s, n_pfns);
 				xen_max_p2m_pfn = pfn_s + n_pfns;
 			} else
-				type = E820_UNUSABLE;
+				discard = true;
 		}
 
-		xen_align_and_add_e820_region(addr, chunk_size, type);
+		if (!discard)
+			xen_align_and_add_e820_region(addr, chunk_size, type);
 
 		addr += chunk_size;
 		size -= chunk_size;