diff --git a/dev/DataSource/Country/CountryAlpha2Source.php b/dev/DataSource/Country/CountryAlpha2Source.php
index eb71feeb..24a03cdc 100644
--- a/dev/DataSource/Country/CountryAlpha2Source.php
+++ b/dev/DataSource/Country/CountryAlpha2Source.php
@@ -5,6 +5,7 @@
 namespace PrinsFrank\Standards\Dev\DataSource\Country;
 
 use PrinsFrank\Standards\Country\CountryAlpha2;
+use PrinsFrank\Standards\Country\CountryName;
 use PrinsFrank\Standards\Dev\DataSource\HtmlDataSource;
 use Symfony\Component\Panther\Client;
 use Symfony\Component\Panther\DomCrawler\Crawler;
@@ -48,7 +49,7 @@ public static function getSpecFQN(): string
 
     public static function getKeyEnumFQN(): string
     {
-        return self::getSpecFQN();
+        return CountryName::class;
     }
 
     public static function afterPageLoad(Client $client, Crawler $crawler): void
diff --git a/dev/DataSource/Country/CountryAlpha3Source.php b/dev/DataSource/Country/CountryAlpha3Source.php
index 9a2d3a8b..32d57032 100644
--- a/dev/DataSource/Country/CountryAlpha3Source.php
+++ b/dev/DataSource/Country/CountryAlpha3Source.php
@@ -5,6 +5,7 @@
 namespace PrinsFrank\Standards\Dev\DataSource\Country;
 
 use PrinsFrank\Standards\Country\CountryAlpha3;
+use PrinsFrank\Standards\Country\CountryName;
 use PrinsFrank\Standards\Dev\DataSource\HtmlDataSource;
 use Symfony\Component\Panther\Client;
 use Symfony\Component\Panther\DomCrawler\Crawler;
@@ -48,7 +49,7 @@ public static function getSpecFQN(): string
 
     public static function getKeyEnumFQN(): string
     {
-        return self::getSpecFQN();
+        return CountryName::class;
     }
 
     public static function afterPageLoad(Client $client, Crawler $crawler): void
diff --git a/dev/DataSource/Country/CountryNumericSource.php b/dev/DataSource/Country/CountryNumericSource.php
index 13dbf354..a9758918 100644
--- a/dev/DataSource/Country/CountryNumericSource.php
+++ b/dev/DataSource/Country/CountryNumericSource.php
@@ -4,6 +4,7 @@
 
 namespace PrinsFrank\Standards\Dev\DataSource\Country;
 
+use PrinsFrank\Standards\Country\CountryName;
 use PrinsFrank\Standards\Country\CountryNumeric;
 use PrinsFrank\Standards\Dev\DataSource\HtmlDataSource;
 use Symfony\Component\Panther\Client;
@@ -48,7 +49,7 @@ public static function getSpecFQN(): string
 
     public static function getKeyEnumFQN(): string
     {
-        return self::getSpecFQN();
+        return CountryName::class;
     }
 
     public static function afterPageLoad(Client $client, Crawler $crawler): void