diff --git a/provision.sh b/provision.sh
index 14d8b51..befed44 100755
--- a/provision.sh
+++ b/provision.sh
@@ -18,7 +18,9 @@ install_modules() {
     fi
 }
 
+BASE_CMD="ansible-playbook playbook.yml --ask-vault-pass --ask-become-pass"
 cd "$(dirname "$0")" || exit 255
+
 if [ "$1" = "--dry" ]; then
     EXEC="echo"
     shift
@@ -26,9 +28,10 @@ else
     EXEC="eval"
 fi
 
-BASE_CMD="ansible-playbook playbook.yml --ask-vault-pass --ask-become-pass"
-TAG="$1"
-shift
+if [ "$#" -gt 0 ]; then
+    TAG="$1"
+    shift
+fi
 
 case $TAG in
     "")