diff --git a/ansible/run.sh b/ansible/run.sh
index d283384..610b77a 100755
--- a/ansible/run.sh
+++ b/ansible/run.sh
@@ -1,3 +1,11 @@
 #!/bin/sh
+set -e
+
+if ! command -v ansible-playbook >/dev/null
+then
+    echo 'Command not found: ansible-playbook'
+    echo 'Install ansible first.'
+    exit 1
+fi
 
 ansible-playbook -i hosts ansible.yml --ask-sudo-pass