diff --git a/README.md b/README.md
index 0ae7e17..29beff0 100644
--- a/README.md
+++ b/README.md
@@ -63,7 +63,7 @@ CRON=true /path/to/backup/script/backup-example.sh
 
 | Name                   | Default              | Description                                                                 |
 | ---------------------- | -------------------- | --------------------------------------------------------------------------- |
-| `restic_url`           | `''`                 | The URL to download restic from. Use this variable to overwrite the default |
+| `restic_url`           | `undefined`          | The URL to download restic from. Use this variable to overwrite the default |
 | `restic_version`       | `'0.9.5'`            | The version of Restic to install                                            |
 | `restic_download_path` | `'/opt/restic'`      | Download location for the restic binary                                     |
 | `restic_install_path`  | `'/usr/local/bin'`   | Install location for the restic binary                                      |
diff --git a/defaults/main.yml b/defaults/main.yml
index b64b6cb..092d225 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -1,6 +1,5 @@
 ---
 # defaults file for skeleton
-restic_url: ''
 restic_version: '0.9.5'
 restic_download_path: '/opt/restic'
 restic_install_path: '/usr/bin'
diff --git a/tasks/install.yml b/tasks/install.yml
index 8efe1d8..b0bacc4 100644
--- a/tasks/install.yml
+++ b/tasks/install.yml
@@ -8,7 +8,7 @@
     restic_url_v: 'v{{ restic_version }}/restic_{{ restic_version }}_'
     restic_file: '{{ restic_system }}_{{ restic_platform }}.bz2'
     restic_url: '{{ restic_url_r }}{{ restic_url_v }}{{ restic_file }}'
-  when: restic_url == ''
+  when: restic_url is not defined
 
 - name: Download client binary
   get_url: