diff --git a/manifests/params.pp b/manifests/params.pp
index 46c57976..cc451e82 100644
--- a/manifests/params.pp
+++ b/manifests/params.pp
@@ -45,7 +45,7 @@
   #     can be set to the user field that is in the group group_field
   $oned_ldap_user_group_field = hiera('one::oned::ldap_user_group_field','undef'),
   # should we enable opennebula repos?
-  $one_repo_enable = hiera('one::enable_opennebula_repo', true ),
+  $one_repo_enable = hiera('one::enable_opennebula_repo', 'true' ),
 
   $backup_script_path        = hiera ('one::oned::backup::script_path', '/var/lib/one/bin/one_db_backup.sh'),
   $ssh_priv_key_param = hiera('one::head::ssh_priv_key',undef),
diff --git a/manifests/prerequisites.pp b/manifests/prerequisites.pp
index 1583994e..f157c102 100644
--- a/manifests/prerequisites.pp
+++ b/manifests/prerequisites.pp
@@ -21,7 +21,7 @@
 class one::prerequisites {
     case $::osfamily {
         'RedHat': {
-            if ( $one::params::one_repo_enable == true ) {
+            if ( $one::params::one_repo_enable == 'true' ) {
                 yumrepo { 'opennebula':
                     baseurl  => 'http://downloads.opennebula.org/repo/4.10/CentOS/6/x86_64/',
                     descr    => 'OpenNebula',
@@ -31,36 +31,36 @@
             }
         }
         'Debian' : {
-      if ($one::params::one_repo_enable == true) {
-        include ::apt
-        case $::operatingsystem {
-          'Debian': {
-            $apt_location="4.10/Debian/${::lsbmajdistrelease}"
-            $apt_pin='-10'
-          }
-          'Ubuntu': {
-            $apt_location="4.10/Ubuntu/${::lsbdistrelease}"
-            $apt_pin='500'
-          }
-          default: { fail("Unrecognized operating system ${::operatingsystem}") }
-        }
+            if ($one::params::one_repo_enable == 'true') {
+                include ::apt
+                case $::operatingsystem {
+                  'Debian': {
+                    $apt_location="4.10/Debian/${::lsbmajdistrelease}"
+                    $apt_pin='-10'
+                  }
+                  'Ubuntu': {
+                    $apt_location="4.10/Ubuntu/${::lsbdistrelease}"
+                    $apt_pin='500'
+                  }
+                  default: { fail("Unrecognized operating system ${::operatingsystem}") }
+                }
 
-        apt::source { 'one-official':
-          location          => "http://downloads.opennebula.org/repo/${apt_location}",
-          release           => 'stable',
-          repos             => 'opennebula',
-          required_packages => 'debian-keyring debian-archive-keyring',
-          pin               => $apt_pin,
-          include_src       => false,
-          require           => Apt::Key['one_repo_key'],
-        }
+                apt::source { 'one-official':
+                  location          => "http://downloads.opennebula.org/repo/${apt_location}",
+                  release           => 'stable',
+                  repos             => 'opennebula',
+                  required_packages => 'debian-keyring debian-archive-keyring',
+                  pin               => $apt_pin,
+                  include_src       => false,
+                  require           => Apt::Key['one_repo_key'],
+                }
 
-        apt::key { 'one_repo_key':
-          key        => '85E16EBF',
-          key_source => 'http://downloads.opennebula.org/repo/Debian/repo.key',
+                apt::key { 'one_repo_key':
+                  key        => '85E16EBF',
+                  key_source => 'http://downloads.opennebula.org/repo/Debian/repo.key',
+                }
+            }
         }
-      }
-    }
         default: {
             notice('We use opennebula from default OS repositories.')
         }
diff --git a/spec/fixtures/hiera/test.yaml b/spec/fixtures/hiera/test.yaml
index 1116bf10..96cd6093 100644
--- a/spec/fixtures/hiera/test.yaml
+++ b/spec/fixtures/hiera/test.yaml
@@ -2,7 +2,7 @@
 one::head::ssh_pub_key: 'ssh pub key'
 one::head::ssh_priv_key: 'ssh-dsa priv key'
 
-one::enable_opennebula_repo: true
+one::enable_opennebula_repo: 'true'
 
 one::oned::db: oned
 one::oned::db_user: oned