diff --git a/home/user/.config/bash/functions b/home/user/.config/bash/functions
index b07302e..e087558 100644
--- a/home/user/.config/bash/functions
+++ b/home/user/.config/bash/functions
@@ -116,9 +116,7 @@ mcd() {
 ## sudo usermod -aG wireguard $USER
 vpn() {
     local STATUS SERVICE CONFIG CONFIGFILE
-    CONFIG="$1"
-
-    test -z "$CONFIG" && CONFIG="wg0"
+    CONFIG="${1:-wg0}"
 
     CONFIGFILE="/etc/wireguard/$CONFIG.conf"
 
diff --git a/install b/install
index 6c230ed..5486ebf 100755
--- a/install
+++ b/install
@@ -32,7 +32,7 @@ declare -A TARGETS=(
 
 _die() {
     echo "$0: $1" >&2
-    exit "$2"
+    exit $2
 }
 
 test "$0" = "./install" || _die "Error: Please, run this file from root of dotfiles, like this './install.sh TARGET" 1