diff --git a/tools/docs/manager.ts b/tools/docs/manager.ts
index d6cb9955927907dbef8fba4ba75690b7a128e626..f8bd25c23261b00ed99fdf87985a6361e7658dd8 100644
--- a/tools/docs/manager.ts
+++ b/tools/docs/manager.ts
@@ -161,6 +161,11 @@ sidebar_label: ${displayName}
         )
         .join(', ');
       md += `This manager supports extracting the following datasources: ${escapedDatasources}.\n\n`;
+
+      md += '## Default config\n\n';
+      md += '```json\n';
+      md += JSON.stringify(definition.defaultConfig, null, 2) + '\n';
+      md += '```\n\n';
     }
     const managerReadmeContent = await readFile(
       `lib/modules/manager/${manager}/readme.md`