diff --git a/modules/jenkins/manifests/slave.pp b/modules/jenkins/manifests/slave.pp
index c3c990e4e6..452815f4de 100644
--- a/modules/jenkins/manifests/slave.pp
+++ b/modules/jenkins/manifests/slave.pp
@@ -239,17 +239,19 @@ class jenkins::slave(
       require    => Database_user['openstack_citest@localhost'],
     }
 
-    $no_postgresql_version = 'Unsupported OS!  Please check `postgres_default_version` fact.'
-    if $::postgres_default_version == $no_postgresql_version {
-      # Have a default postgres version if the postgresql module can't decide
-      # on a sane default for itself.
-      $postgresql_version = '9.1'
-    }
-    else {
-      $postgresql_version = $::postgres_default_version
-    }
-    class { 'postgresql::params':
-      version => $postgresql_version,
+    if ($::operatingsystem != 'Fedora') {
+      $no_postgresql_version = 'Unsupported OS!  Please check `postgres_default_version` fact.'
+      if $::postgres_default_version == $no_postgresql_version {
+        # Have a default postgres version if the postgresql module can't decide
+        # on a sane default for itself.
+        $postgresql_version = '9.1'
+      }
+      else {
+        $postgresql_version = $::postgres_default_version
+      }
+      class { 'postgresql::params':
+        version => $postgresql_version,
+      }
     }
 
     class { 'postgresql::server':