diff --git a/src/main/java/com/knowledge/base/infrastructure/north/controller/FileWriteController.java b/src/main/java/com/knowledge/base/infrastructure/north/controller/FileWriteController.java
index 3c26412..9b40f31 100644
--- a/src/main/java/com/knowledge/base/infrastructure/north/controller/FileWriteController.java
+++ b/src/main/java/com/knowledge/base/infrastructure/north/controller/FileWriteController.java
@@ -22,6 +22,7 @@ import org.elasticsearch.index.query.QueryBuilders;
 import org.elasticsearch.index.reindex.DeleteByQueryRequest;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.*;
 import org.springframework.web.multipart.MultipartFile;
@@ -47,6 +48,7 @@ public class FileWriteController {
     private final ObjectStorageGateway objectStorageGateway;
     private final ObjectStorageProperties objectStorageProperties;
 
+    @Autowired
     private List<DocumentImporter> importers;
 
     @PostMapping("/addUserFileAuth")