diff --git a/composer.json b/composer.json
index 28583bb..81f1bfc 100644
--- a/composer.json
+++ b/composer.json
@@ -12,5 +12,10 @@
 	}],
 	"require": {
 		"silverstripe/framework": "~3.1"
+	},
+	"extra": {
+		"branch-alias": {
+			"dev-master": "2.0.x-dev"
+		}
 	}
 }