diff --git a/redmine/tasks/base-config.yml b/redmine/tasks/base-config.yml
index 78dc93c2..ed3ef4cb 100644
--- a/redmine/tasks/base-config.yml
+++ b/redmine/tasks/base-config.yml
@@ -1,15 +1,11 @@
 ---
 - name: Load the required apache modules
   apache2_module: name={{ item }} state=present
-  with_items: redmine_base_apache_modules
+  with_items: '{{ redmine_base_apache_modules }}'
   notify: apache2 reload
-  tags:
-    - apache
-    - redmine
+  tags: [ 'apache', 'redmine' ]
 
 - name: Ensure that the apache ssl directory exists
   file: dest=/etc/apache2/ssl state=directory owner=root group=root mode=0750
-  tags:
-    - apache
-    - redmine
+  tags: [ 'apache', 'redmine' ]
 
diff --git a/redmine/tasks/mod_passenger.yml b/redmine/tasks/mod_passenger.yml
index 4f35309a..861bfd37 100644
--- a/redmine/tasks/mod_passenger.yml
+++ b/redmine/tasks/mod_passenger.yml
@@ -3,46 +3,22 @@
   apt_key: id=561F9B9CAC40B2F7 keyserver=keyserver.ubuntu.com state=present
   register: update_apt_cache
   when: ruby_use_mod_passenger
-  tags:
-    - ruby
-    - redmine
-    - passenger
+  tags: [ 'ruby', 'redmine', 'passenger' ]
 
 - name: Install the phusion passenger repo
-  apt_repository: repo='deb https://oss-binaries.phusionpassenger.com/apt/passenger {{ ansible_distribution_release }} main' state=present
-  register: update_apt_cache
+  apt_repository: repo='deb https://oss-binaries.phusionpassenger.com/apt/passenger {{ ansible_distribution_release }} main' state=present update_cache=yes
   when: ruby_use_mod_passenger
-  tags:
-    - ruby
-    - redmine
-    - passenger
-
-- name: Update the apt cache
-  apt: update_cache=yes
-  when:
-    - ruby_use_mod_passenger
-    - update_apt_cache.changed
-  ignore_errors: True
-  tags:
-    - ruby
-    - redmine
-    - passenger
+  tags: [ 'ruby', 'redmine', 'passenger' ]
 
 - name: Install the apache mod_passenger package
   apt: pkg=libapache2-mod-passenger state=present
   when: ruby_use_mod_passenger
   notify: apache2 reload
-  tags:
-    - apache
-    - redmine
-    - passenger
+  tags: [ 'ruby', 'redmine', 'passenger' ]
 
 - name: Install the mod-passenger configuration
   apache2_module: name=passenger state=present
   when: ruby_use_mod_passenger
   notify: apache2 reload
-  tags:
-    - apache
-    - redmine
-    - passenger
+  tags: [ 'ruby', 'redmine', 'passenger' ]
 
diff --git a/redmine/tasks/redmine.yml b/redmine/tasks/redmine.yml
index 9074f63c..ba7be0b1 100644
--- a/redmine/tasks/redmine.yml
+++ b/redmine/tasks/redmine.yml
@@ -1,6 +1,6 @@
 ---
 - name: Fail if the redmine data directory variable is not defined
-  fail: redmine_glob_root_dir is required for this role
+  fail: msg="redmine_glob_root_dir is required for this role"
   when: redmine_glob_root_dir is not defined
   tags: redmine
 
diff --git a/redmine/tasks/unicorn.yml b/redmine/tasks/unicorn.yml
index 636539b7..ae6fdfcf 100644
--- a/redmine/tasks/unicorn.yml
+++ b/redmine/tasks/unicorn.yml
@@ -1,7 +1,7 @@
 ---
 - name: Install the unicorn ruby-on-rails service and its dependencies
   gem: name={{ item }} state=latest
-  with_items: unicorn_gems
+  with_items: '{{ unicorn_gems }}'
   when: ruby_use_unicorn
   tags: [ 'ruby', 'redmine', 'unicorn' ]
 
@@ -35,7 +35,7 @@
 
 - name: Install the needed apache modules
   apache2_module: name={{ item }} state=present
-  with_items: unicorn_apache_modules
+  with_items: '{{ unicorn_apache_modules }}'
   when: ruby_use_unicorn
   notify: apache2 reload
   tags: [ 'ruby', 'redmine', 'unicorn' ]