diff --git a/composer.json b/composer.json
index 0d67b84..8f98ab1 100644
--- a/composer.json
+++ b/composer.json
@@ -35,7 +35,8 @@
 			"bamarni/composer-bin-plugin": true,
 			"roots/wordpress-core-installer": true,
 			"composer/installers": true,
-			"dealerdirect/phpcodesniffer-composer-installer": true
+			"dealerdirect/phpcodesniffer-composer-installer": true,
+			"automattic/jetpack-autoloader": true
 		},
 		"wp-slug": "pronamic-pay-paypal"
 	},