diff --git a/installer.sh b/installer.sh
index 1a8a3b4..aa14302 100644
--- a/installer.sh
+++ b/installer.sh
@@ -75,7 +75,7 @@ dhparam=1024
 PKGA="add-apt-repository"
 PKGI="${PKGM} install -y"
 db_pass=$(date +%s|sha256sum|base64|head -c 32)
-wan=`ip -o route get 8.8.8.8 | sed -e 's/^.* src \([^ ]*\) .*$/\1/'`
+wanip=`ip -o route get 8.8.8.8 | sed -e 's/^.* src \([^ ]*\) .*$/\1/'`
 debconf-set-selections <<< "postfix postfix/mailname string $(hostname -f)"
 debconf-set-selections <<< "postfix postfix/main_mailer_type string 'Internet Site'"