diff --git a/include/lib.sh b/include/lib.sh
index cf076388..b3a76879 100755
--- a/include/lib.sh
+++ b/include/lib.sh
@@ -223,7 +223,8 @@ e()
 singletree()
 {
 	for targetfile in "config/${1}/"*/target.cfg; do
-		[ -e "$targetfile" ] && [ -f "$targetfile" ] && return 1
+		[ -e "$targetfile" ] || continue
+		[ -f "$targetfile" ] && return 1
 	done
 }