diff --git a/manifests/database/sql/mysql.pp b/manifests/database/sql/mysql.pp
index aa41c1a0..2e59f894 100644
--- a/manifests/database/sql/mysql.pp
+++ b/manifests/database/sql/mysql.pp
@@ -417,7 +417,7 @@ class cloud::database::sql::mysql (
       }
     } # Debian
     default: {
-      err "${::osfamily} not supported yet"
+      fail("${::osfamily} not supported yet")
     }
   }
 
diff --git a/manifests/network.pp b/manifests/network.pp
index 0b16f7bc..b4873ab7 100644
--- a/manifests/network.pp
+++ b/manifests/network.pp
@@ -89,7 +89,7 @@ class cloud::network(
       $core_plugin = 'neutron.plugins.cisco.network_plugin.PluginV2'
     }
     default: {
-      err "${plugin} plugin is not supported."
+      fail("${plugin} plugin is not supported.")
     }
   }
 
diff --git a/manifests/network/controller.pp b/manifests/network/controller.pp
index 092b960c..340d5ff2 100644
--- a/manifests/network/controller.pp
+++ b/manifests/network/controller.pp
@@ -254,7 +254,7 @@ class cloud::network::controller(
     }
 
     default: {
-      err "${plugin} plugin is not supported."
+      fail("${plugin} plugin is not supported.")
     }
   }
 
diff --git a/manifests/network/vswitch.pp b/manifests/network/vswitch.pp
index 10d663d6..0a00ce6c 100644
--- a/manifests/network/vswitch.pp
+++ b/manifests/network/vswitch.pp
@@ -215,7 +215,7 @@ class cloud::network::vswitch(
     }
 
     default: {
-      err "${driver} driver is not supported."
+      fail("${driver} driver is not supported.")
     }
   }
 
diff --git a/spec/classes/cloud_network_vswitch_spec.rb b/spec/classes/cloud_network_vswitch_spec.rb
index 6078ad50..d101b76e 100644
--- a/spec/classes/cloud_network_vswitch_spec.rb
+++ b/spec/classes/cloud_network_vswitch_spec.rb
@@ -133,7 +133,7 @@ describe 'cloud::network::vswitch' do
       before :each do
         params.merge!(:driver => 'Something')
       end
-      it { should compile.and_raise_error(/Something plugin is not supported./) }
+      it_raises 'a Puppet::Error', /Something driver is not supported./
     end
 
     context 'with default firewall enabled' do