diff --git a/manifests/database/postgresql.pp b/manifests/database/postgresql.pp
index 825b3fe7..6c36e16c 100644
--- a/manifests/database/postgresql.pp
+++ b/manifests/database/postgresql.pp
@@ -150,7 +150,7 @@
       user     => $database_username,
       password => $database_password,
       encoding => 'UTF8',
-      locale   => 'en_US.UTF-8',
+      locale   => 'C.UTF-8',
       grant    => 'all',
       port     => $port,
     }
diff --git a/spec/unit/classes/database/postgresql_spec.rb b/spec/unit/classes/database/postgresql_spec.rb
index 74fd63b9..a1ad12a0 100644
--- a/spec/unit/classes/database/postgresql_spec.rb
+++ b/spec/unit/classes/database/postgresql_spec.rb
@@ -63,7 +63,7 @@
             grant:    'all',
             port:     params[:database_port].to_i,
             encoding: 'UTF8',
-            locale:   'en_US.UTF-8',
+            locale:   'C.UTF-8',
           )
       }