diff --git a/main.py b/main.py
index 1b3b00a..dfd6bd2 100644
--- a/main.py
+++ b/main.py
@@ -82,7 +82,10 @@ def insert_data_mongo(id, filepath,pChunk):
         'filepath': filepath,
         'chunk_content': pChunk,
     }
-    collection.insert_one(dokument)
+    result = collection.insert_one(dokument)
+
+    if result.acknowledged:
+        collection.create_index("doc_id")
 
 def reload_files():
     # path = input("Please provider path to folder: ")