diff --git a/src/Supportive/DependencyInjection/ServiceContainerBuilder.php b/src/Supportive/DependencyInjection/ServiceContainerBuilder.php
index 798b669d..8a5ff9ab 100644
--- a/src/Supportive/DependencyInjection/ServiceContainerBuilder.php
+++ b/src/Supportive/DependencyInjection/ServiceContainerBuilder.php
@@ -24,6 +24,8 @@ final class ServiceContainerBuilder
     private ?SplFileInfo $configFile = null;
     private ?SplFileInfo $cacheFile = null;
 
+    private const DEPTRAC_INTERNAL_CONFIG_PATH = __DIR__.'/../../../config';
+
     public function __construct(private readonly string $workingDirectory) {}
 
     public function withConfig(?string $configFile): self
@@ -79,6 +81,9 @@ public function build(string|false|null $cacheOverride, bool $clearCache): Conta
         $container->registerExtension(new DeptracExtension());
 
         $container->setParameter('projectDirectory', $this->workingDirectory);
+
+        self::loadServices($container);
+
         if (null !== $this->configFile) {
             self::loadConfiguration($container, $this->configFile);
         }
@@ -95,7 +100,10 @@ public function build(string|false|null $cacheOverride, bool $clearCache): Conta
             $this->withCache($cache);
         }
 
-        self::loadServices($container, $this->cacheFile);
+        if (null !== $this->cacheFile) {
+            self::loadCache($container, $this->cacheFile);
+        }
+
         $container->compile(true);
 
         return $container;
@@ -108,22 +116,26 @@ private static function registerCompilerPasses(ContainerBuilder $container): voi
     }
 
     /**
-     * @throws CacheFileException
      * @throws CannotLoadConfiguration
      */
-    private static function loadServices(ContainerBuilder $container, ?SplFileInfo $cacheFile): void
+    private static function loadServices(ContainerBuilder $container): void
     {
-        $loader = new PhpFileLoader($container, new FileLocator([__DIR__.'/../../../config']));
+        $loader = new PhpFileLoader($container, new FileLocator([self::DEPTRAC_INTERNAL_CONFIG_PATH]));
 
         try {
             $loader->load('services.php');
         } catch (Exception $exception) {
             throw CannotLoadConfiguration::fromServices('services.php', $exception->getMessage());
         }
+    }
 
-        if (!$cacheFile instanceof SplFileInfo) {
-            return;
-        }
+    /**
+     * @throws CacheFileException
+     * @throws CannotLoadConfiguration
+     */
+    private static function loadCache(ContainerBuilder $container, SplFileInfo $cacheFile): void
+    {
+        $loader = new PhpFileLoader($container, new FileLocator([self::DEPTRAC_INTERNAL_CONFIG_PATH]));
 
         if (!file_exists($cacheFile->getPathname())) {
             $dirname = $cacheFile->getPath() ?: '.';