diff --git a/phpBB/language/en/composer.json b/phpBB/language/en/composer.json
index 95cb24718c..7402e5efa5 100644
--- a/phpBB/language/en/composer.json
+++ b/phpBB/language/en/composer.json
@@ -25,7 +25,7 @@
 		"phpbb-version": "4.0.0-a1-dev",
 		"direction": "ltr",
 		"user-lang": "en-gb",
-		"plural-rule": "1",
+		"plural-rule": 1,
 		"recaptcha-lang": "en-GB"
 	}
 }