diff --git a/drivers/partition/partition.c b/drivers/partition/partition.c
index d6fb4b8..6085b86 100644
--- a/drivers/partition/partition.c
+++ b/drivers/partition/partition.c
@@ -30,7 +30,7 @@
 			name[len + j] = ' ';
 		}
 		name[EFI_NAMELEN - 1] = '\0';
-		VERBOSE("%d: %s %lx-%lx\n", i + 1, name, list.list[i].start,
+		VERBOSE("%d: %s %llx-%llx\n", i + 1, name, list.list[i].start,
 			list.list[i].start + list.list[i].length - 4);
 	}
 }