diff --git a/.gitignore b/.gitignore
index dc55505e..ac88a24a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,5 +10,9 @@
 /.default_queries.php
 /pkg
 /.bundle
+# Ignore configuration files
+config.php
+config.*.php
+
 *.pem
 !tests/Http/Authentication/samples/*.pem
diff --git a/app/Factory/ConfigFactory.php b/app/Factory/ConfigFactory.php
index e52ac0ff..0fac7945 100644
--- a/app/Factory/ConfigFactory.php
+++ b/app/Factory/ConfigFactory.php
@@ -5,20 +5,15 @@
 namespace CultuurNet\UDB3\SearchService\Factory;
 
 use Noodlehaus\Config;
-use Noodlehaus\Parser\Yaml;
+use Noodlehaus\Parser\Php;
 
 final class ConfigFactory
 {
     public static function create(string $configDir): Config
     {
         $configFiles = [
-            $configDir . '/config.yml',
-            $configDir . '/facet_mapping_facilities.yml',
-            $configDir . '/facet_mapping_regions.yml',
-            $configDir . '/facet_mapping_themes.yml',
-            $configDir . '/facet_mapping_types.yml',
-            $configDir . '/features.yml',
+            $configDir . '/config.php',
         ];
-        return Config::load($configFiles, new Yaml());
+        return Config::load($configFiles, new Php());
     }
 }