diff --git a/backend/src/schema/resolvers/index.ts b/backend/src/schema/resolvers/index.ts
index 75d772391..1aeadbea2 100644
--- a/backend/src/schema/resolvers/index.ts
+++ b/backend/src/schema/resolvers/index.ts
@@ -1,5 +1,6 @@
 import path from 'path'
 import { fileLoader, mergeResolvers } from 'merge-graphql-schemas'
 
+// the files must be correctly evaluated in built and dev state - therefore accept both js & ts files
 const resolversArray = fileLoader(path.join(__dirname, './!(*.spec).(ts|js)'))
 export default mergeResolvers(resolversArray)