diff --git a/packages/plugin-system-settings/src/collections/system_settings.ts b/packages/plugin-system-settings/src/collections/system_settings.ts
index b44144eac..7acde3f8f 100644
--- a/packages/plugin-system-settings/src/collections/system_settings.ts
+++ b/packages/plugin-system-settings/src/collections/system_settings.ts
@@ -14,6 +14,7 @@ export default {
     {
       type: 'boolean',
       name: 'allowSignUp',
+      defaultValue: true,
     },
     {
       type: 'belongsTo',