diff --git a/src/Helpers/Addresses.php b/src/Service/Addresses.php
similarity index 89%
rename from src/Helpers/Addresses.php
rename to src/Service/Addresses.php
index a31710e..e1f8ce1 100644
--- a/src/Helpers/Addresses.php
+++ b/src/Service/Addresses.php
@@ -1,9 +1,9 @@
 <?php
 
-namespace Opdavies\GmailFilterBuilder\Helpers;
+namespace Opdavies\GmailFilterBuilder\Service;
 
 /**
- * A helper class for loading addresses from separate files.
+ * A service for loading addresses from separate files.
  */
 class Addresses
 {
diff --git a/tests/Unit/Helpers/AddressesTest.php b/tests/Unit/Service/AddressesTest.php
similarity index 83%
rename from tests/Unit/Helpers/AddressesTest.php
rename to tests/Unit/Service/AddressesTest.php
index e2b9543..880d449 100644
--- a/tests/Unit/Helpers/AddressesTest.php
+++ b/tests/Unit/Service/AddressesTest.php
@@ -2,13 +2,13 @@
 
 namespace Opdavies\Tests\GmailFilterBuilder\Model;
 
-use Opdavies\GmailFilterBuilder\Helpers\Addresses;
+use Opdavies\GmailFilterBuilder\Service\Addresses;
 use PHPUnit\Framework\TestCase;
 
 /**
  * Test loading addresses from a separate file.
  *
- * @coversDefaultClass \Opdavies\GmailFilterBuilder\Helpers\Addresses
+ * @coversDefaultClass \Opdavies\GmailFilterBuilder\Service\Addresses
  */
 class AddressesTest extends TestCase
 {