diff --git a/lib/config/validation.ts b/lib/config/validation.ts
index c8b4ae58cf2f0e3a55a83eac3b710a2af0fae6cb..da4d08bc9a51e6266152ff717a88cd2ed7d81fbb 100644
--- a/lib/config/validation.ts
+++ b/lib/config/validation.ts
@@ -266,6 +266,7 @@ export async function validateConfig(
             }
             if (key === 'regexManagers') {
               const allowedKeys = [
+                'description',
                 'fileMatch',
                 'matchStrings',
                 'matchStringsStrategy',