diff --git a/src/SilverStripe/BehatExtension/Compiler/CoreInitializationPass.php b/src/SilverStripe/BehatExtension/Compiler/CoreInitializationPass.php
index efcff2f..a6cda19 100644
--- a/src/SilverStripe/BehatExtension/Compiler/CoreInitializationPass.php
+++ b/src/SilverStripe/BehatExtension/Compiler/CoreInitializationPass.php
@@ -21,7 +21,7 @@ class CoreInitializationPass implements CompilerPassInterface
         // Connect to database and build manifest
         $frameworkPath = $container->getParameter('behat.silverstripe_extension.framework_path');
         $_GET['flush'] = 1;
-        require_once $frameworkPath . '/core/Core.php';
+        require_once $frameworkPath . '/Core/Core.php';
 
         SapphireTest::use_test_manifest();
 
diff --git a/src/SilverStripe/BehatExtension/Console/Processor/InitProcessor.php b/src/SilverStripe/BehatExtension/Console/Processor/InitProcessor.php
index 9669198..85907eb 100644
--- a/src/SilverStripe/BehatExtension/Console/Processor/InitProcessor.php
+++ b/src/SilverStripe/BehatExtension/Console/Processor/InitProcessor.php
@@ -66,7 +66,7 @@ class InitProcessor extends BaseProcessor
         // Bootstrap SS so we can use module listing
         $frameworkPath = $this->container->getParameter('behat.silverstripe_extension.framework_path');
         $_GET['flush'] = 1;
-        require_once $frameworkPath . '/core/Core.php';
+        require_once $frameworkPath . '/Core/Core.php';
         unset($_GET['flush']);
 
         $featuresPath = $input->getArgument('features');
diff --git a/src/SilverStripe/BehatExtension/Context/Initializer/SilverStripeAwareInitializer.php b/src/SilverStripe/BehatExtension/Context/Initializer/SilverStripeAwareInitializer.php
index be5db85..2058230 100644
--- a/src/SilverStripe/BehatExtension/Context/Initializer/SilverStripeAwareInitializer.php
+++ b/src/SilverStripe/BehatExtension/Context/Initializer/SilverStripeAwareInitializer.php
@@ -193,7 +193,7 @@ class SilverStripeAwareInitializer implements InitializerInterface
 
         // Connect to database and build manifest
         $_GET['flush'] = 1;
-        require_once $frameworkPath . '/core/Core.php';
+        require_once $frameworkPath . '/Core/Core.php';
         unset($_GET['flush']);
 
         // Remove the error handler so that PHPUnit can add its own
diff --git a/tests/bootstrap.php b/tests/bootstrap.php
index f20a11b..d12525c 100644
--- a/tests/bootstrap.php
+++ b/tests/bootstrap.php
@@ -4,4 +4,4 @@ $frameworkDir = basename($frameworkPath);
 if (!defined('BASE_PATH')) {
     define('BASE_PATH', dirname($frameworkPath));
 }
-require_once $frameworkPath . '/core/Core.php';
+require_once $frameworkPath . '/Core/Core.php';