diff --git a/abuild.in b/abuild.in
index bc7d197..91f0a00 100755
--- a/abuild.in
+++ b/abuild.in
@@ -647,6 +647,12 @@ postcheck() {
 		echo "$i"
 		return 1
 	fi
+	# look for /usr/lib/charset.alias
+	if [ -e "$dir"/usr/lib/charset.alias ] \
+			&& ! options_has "charset.alias"; then
+		error "Found /usr/lib/charset.alias"
+		return 1
+	fi
 	# check directory permissions
 	i=$(find "$dir" -type d -perm -777 | sed "s|^$dir|\t|")
 	if [ -n "$i" ]; then