diff --git a/phpBB/phpbb/di/extension/core.php b/phpBB/phpbb/di/extension/core.php
index d6679f1c61..9100150086 100644
--- a/phpBB/phpbb/di/extension/core.php
+++ b/phpBB/phpbb/di/extension/core.php
@@ -26,7 +26,11 @@ use phpbb\filesystem\helper as filesystem_helper;
 */
 class core extends Extension
 {
-	const TWIG_OPTIONS_POSITION = 7;
+	/**
+	 * Index of array in service template.twig.environment inside services_twig.yml
+	 * @var int
+	 */
+	const TWIG_OPTIONS_POSITION = 8;
 
 	/**
 	 * Config path
@@ -86,7 +90,7 @@ class core extends Extension
 			$twig_environment_options['auto_reload'] = true;
 		}
 
-		// Replace the 7th argument, the options passed to the environment
+		// Replace the 8th argument, the options passed to the environment
 		$definition->replaceArgument(static::TWIG_OPTIONS_POSITION, $twig_environment_options);
 
 		if ($config['twig']['enable_debug_extension'])
diff --git a/tests/di/fixtures/config/production/container/environment.yml b/tests/di/fixtures/config/production/container/environment.yml
index 2792b24162..f71ec2dfd9 100644
--- a/tests/di/fixtures/config/production/container/environment.yml
+++ b/tests/di/fixtures/config/production/container/environment.yml
@@ -37,4 +37,5 @@ services:
             - ~
             - ~
             - ~
+            - ~
             - []
diff --git a/tests/di/fixtures/config/test/container/environment.yml b/tests/di/fixtures/config/test/container/environment.yml
index 356eb4b008..03b394f1fd 100644
--- a/tests/di/fixtures/config/test/container/environment.yml
+++ b/tests/di/fixtures/config/test/container/environment.yml
@@ -34,4 +34,5 @@ services:
             - ~
             - ~
             - ~
+            - ~
             - []
diff --git a/tests/di/fixtures/other_config/production/container/environment.yml b/tests/di/fixtures/other_config/production/container/environment.yml
index aeb552eeb7..dd63c636e1 100644
--- a/tests/di/fixtures/other_config/production/container/environment.yml
+++ b/tests/di/fixtures/other_config/production/container/environment.yml
@@ -34,4 +34,5 @@ services:
             - ~
             - ~
             - ~
+            - ~
             - []
diff --git a/tests/di/fixtures/other_config/test/container/environment.yml b/tests/di/fixtures/other_config/test/container/environment.yml
index b9f6d05018..06366b8160 100644
--- a/tests/di/fixtures/other_config/test/container/environment.yml
+++ b/tests/di/fixtures/other_config/test/container/environment.yml
@@ -26,4 +26,5 @@ services:
             - ~
             - ~
             - ~
+            - ~
             - []