diff --git a/minix/commands/update_asr/update_asr.sh b/minix/commands/update_asr/update_asr.sh
index 503eda0a3..2b6af99bd 100644
--- a/minix/commands/update_asr/update_asr.sh
+++ b/minix/commands/update_asr/update_asr.sh
@@ -55,7 +55,10 @@ shift $(($OPTIND - 1))
 if [ $# -eq 0 ]; then
 	services=$(echo /proc/service/*)
 else
-	services="$@"
+	services=
+	for label in $@; do
+		services="$services /proc/service/$label"
+	done
 fi
 
 for service in $services; do