diff --git a/build b/build
index 154996d..45a57f4 100755
--- a/build
+++ b/build
@@ -173,9 +173,8 @@ build_release()
 
 fetch_trees()
 {
-	for x in config/git/*; do
-		[ ! -f "${x}" ] || ./update trees -f "${x#config/git/}" || \
-		    $err "${_xm}: fetch ${x#config/git/}"
+	for x in $(items config/git); do
+		./update trees -f "$x" || $err "$_xm: fetch $x"
 	done
 
 	for x in config/*/build.list; do