diff --git a/lib/workers/repository/config-migration/branch/migrated-data.ts b/lib/workers/repository/config-migration/branch/migrated-data.ts
index ce310b70c9737e7d96b69bf3b48b81c755f7637f..0812fbc9c86bfa7c00cad2287a9fb75df86d9ea9 100644
--- a/lib/workers/repository/config-migration/branch/migrated-data.ts
+++ b/lib/workers/repository/config-migration/branch/migrated-data.ts
@@ -68,7 +68,7 @@ export class MigratedDataFactory {
       res = { content, filename };
     } catch (err) {
       logger.debug(
-        err,
+        { err },
         'MigratedDataFactory.getAsync() Error initializing renovate MigratedData'
       );
     }