diff --git a/defaults/main.yml b/defaults/main.yml
index a6a7776..729ce16 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -10,5 +10,9 @@ websvn__config_src: templates/config.php
 websvn__config_parentPath: '/var/svn' # false for disable this option
 websvn__manage_config_parentPath: true
 
+websvn__install_optional_packages: true
+websvn__optional_packages:
+  - sudo
+
 # should we do a version check? (recomended)
 submodules_versioncheck: false
diff --git a/tasks/packages.yml b/tasks/packages.yml
index 37200b9..cd20bfc 100644
--- a/tasks/packages.yml
+++ b/tasks/packages.yml
@@ -4,3 +4,10 @@
   package:
     name: "{{ websvn__required_packages }}"
     state: "{{ websvn__state }}"
+
+- name: install optional OS dependencis (primary for testing)
+  become: true
+  package:
+    name: "{{ websvn__optional_packages }}"
+    state: "{{ websvn__state }}"
+  when: "{{ websvn__install_optional_packages | bool }}"