diff --git a/main/cmd/unpack/pkg_unpack.c b/main/cmd/unpack/pkg_unpack.c
index d72a0d5..b948f2d 100644
--- a/main/cmd/unpack/pkg_unpack.c
+++ b/main/cmd/unpack/pkg_unpack.c
@@ -122,7 +122,7 @@ static int change_permissions(int dirfd, image_entry_t *list, int flags)
 			continue;
 		}
 
-		if (!(flags & FLAG_NO_CHMOD) && !S_ISLNK(list->mode)) {
+		if (!(flags & UNPACK_NO_CHMOD) && !S_ISLNK(list->mode)) {
 			if (fchmodat(dirfd, list->name,
 				     list->mode & 07777, 0)) {
 				fprintf(stderr, "%s: chmod: %s\n", list->name,
@@ -131,7 +131,7 @@ static int change_permissions(int dirfd, image_entry_t *list, int flags)
 			}
 		}
 
-		if (!(flags & FLAG_NO_CHOWN)) {
+		if (!(flags & UNPACK_NO_CHOWN)) {
 			if (fchownat(dirfd, list->name, list->uid, list->gid,
 				     AT_SYMLINK_NOFOLLOW)) {
 				fprintf(stderr, "%s: chown: %s\n", list->name,
diff --git a/main/cmd/unpack/unpack.c b/main/cmd/unpack/unpack.c
index bdcb087..c4e8562 100644
--- a/main/cmd/unpack/unpack.c
+++ b/main/cmd/unpack/unpack.c
@@ -26,10 +26,10 @@ static int cmd_unpack(int argc, char **argv)
 			root = optarg;
 			break;
 		case 'o':
-			flags |= FLAG_NO_CHOWN;
+			flags |= UNPACK_NO_CHOWN;
 			break;
 		case 'm':
-			flags |= FLAG_NO_CHMOD;
+			flags |= UNPACK_NO_CHMOD;
 			break;
 		default:
 			tell_read_help(argv[0]);
diff --git a/main/cmd/unpack/unpack.h b/main/cmd/unpack/unpack.h
index 74b5bbe..c7e4f65 100644
--- a/main/cmd/unpack/unpack.h
+++ b/main/cmd/unpack/unpack.h
@@ -18,8 +18,8 @@
 #include "util.h"
 
 enum {
-	FLAG_NO_CHOWN = 0x01,
-	FLAG_NO_CHMOD = 0x02,
+	UNPACK_NO_CHOWN = 0x01,
+	UNPACK_NO_CHMOD = 0x02,
 };
 
 int mkdir_p(const char *path);