diff --git a/lib/fog/openstack/requests/network/create_subnet.rb b/lib/fog/openstack/requests/network/create_subnet.rb
index 2265de4a2..aad7cef07 100644
--- a/lib/fog/openstack/requests/network/create_subnet.rb
+++ b/lib/fog/openstack/requests/network/create_subnet.rb
@@ -38,9 +38,9 @@ module Fog
             'cidr'             => cidr,
             'ip_version'       => ip_version,
             'gateway_ip'       => options[:gateway_ip],
-            'allocation_pools' => options[:allocation_pools]  || [],
-            'dns_nameservers'  => options[:dns_nameservers]   || [],
-            'host_routes'      => options[:host_routes]       || [],
+            'allocation_pools' => options[:allocation_pools],
+            'dns_nameservers'  => options[:dns_nameservers],
+            'host_routes'      => options[:host_routes],
             'enable_dhcp'      => options[:enable_dhcp],
             'tenant_id'        => options[:tenant_id]
           }
diff --git a/lib/fog/openstack/requests/network/update_subnet.rb b/lib/fog/openstack/requests/network/update_subnet.rb
index d0e0a9c46..24d87de34 100644
--- a/lib/fog/openstack/requests/network/update_subnet.rb
+++ b/lib/fog/openstack/requests/network/update_subnet.rb
@@ -26,9 +26,9 @@ module Fog
           if subnet = list_subnets.body['subnets'].find { |_| _['id'] == subnet_id }
             subnet['name']              = options[:name]
             subnet['gateway_ip']        = options[:gateway_ip]
-            subnet['dns_nameservers']   = options[:dns_nameservers]
-            subnet['host_routes']       = options[:host_routes]
-            subnet['allocation_pools']  = options[:allocation_pools]
+            subnet['dns_nameservers']   = options[:dns_nameservers]   || []
+            subnet['host_routes']       = options[:host_routes]       || []
+            subnet['allocation_pools']  = options[:allocation_pools]  || []
             subnet['enable_dhcp']       = options[:enable_dhcp]
             response.body = { 'subnet' => subnet }
             response.status = 200
diff --git a/tests/openstack/requests/network/subnet_tests.rb b/tests/openstack/requests/network/subnet_tests.rb
index ada254d39..bb9ac7154 100644
--- a/tests/openstack/requests/network/subnet_tests.rb
+++ b/tests/openstack/requests/network/subnet_tests.rb
@@ -38,8 +38,8 @@ Shindo.tests('Fog::Network[:openstack] | subnet requests', ['openstack']) do
     tests('#update_subnet').formats({'subnet' => @subnet_format}) do
       subnet_id = Fog::Network[:openstack].subnets.all.first.id
       attributes = {:name => 'subnet_name', :gateway_ip => '10.2.2.1',
-                    :dns_nameservers => [], :host_routes => [],
-                    :enable_dhcp => true}
+                    :allocation_pools => [], :dns_nameservers => [],
+                    :host_routes => [], :enable_dhcp => true}
       Fog::Network[:openstack].update_subnet(subnet_id, attributes).body
     end