diff --git a/rest_api/controller/feedback.py b/rest_api/controller/feedback.py
index b9a086689..80f0c4a48 100644
--- a/rest_api/controller/feedback.py
+++ b/rest_api/controller/feedback.py
@@ -10,6 +10,7 @@ from rest_api.config import (
     DB_USER,
     DB_PW,
     DB_INDEX,
+    DB_INDEX_FEEDBACK,
     ES_CONN_SCHEME,
     TEXT_FIELD_NAME,
     SEARCH_FIELD_NAME,
@@ -20,7 +21,6 @@ from rest_api.config import (
     CREATE_INDEX,
     VECTOR_SIMILARITY_METRIC
 )
-from rest_api.config import DB_INDEX_FEEDBACK
 
 router = APIRouter()
 
@@ -30,6 +30,7 @@ document_store = ElasticsearchDocumentStore(
     username=DB_USER,
     password=DB_PW,
     index=DB_INDEX,
+    label_index=DB_INDEX_FEEDBACK,
     scheme=ES_CONN_SCHEME,
     ca_certs=False,
     verify_certs=False,
diff --git a/rest_api/controller/file_upload.py b/rest_api/controller/file_upload.py
index 0dc98e12e..df4c55311 100644
--- a/rest_api/controller/file_upload.py
+++ b/rest_api/controller/file_upload.py
@@ -9,7 +9,7 @@ from fastapi import APIRouter
 from fastapi import HTTPException
 from fastapi import UploadFile, File, Form
 
-from rest_api.config import DB_HOST, DB_PORT, DB_USER, DB_PW, DB_INDEX, ES_CONN_SCHEME, TEXT_FIELD_NAME, \
+from rest_api.config import DB_HOST, DB_PORT, DB_USER, DB_PW, DB_INDEX, DB_INDEX_FEEDBACK, ES_CONN_SCHEME, TEXT_FIELD_NAME, \
     SEARCH_FIELD_NAME, FILE_UPLOAD_PATH, EMBEDDING_DIM, EMBEDDING_FIELD_NAME, EXCLUDE_META_DATA_FIELDS, VALID_LANGUAGES, \
     FAQ_QUESTION_FIELD_NAME, REMOVE_NUMERIC_TABLES, REMOVE_WHITESPACE, REMOVE_EMPTY_LINES, REMOVE_HEADER_FOOTER, \
     CREATE_INDEX, VECTOR_SIMILARITY_METRIC
@@ -28,6 +28,7 @@ document_store = ElasticsearchDocumentStore(
     username=DB_USER,
     password=DB_PW,
     index=DB_INDEX,
+    label_index=DB_INDEX_FEEDBACK,
     scheme=ES_CONN_SCHEME,
     ca_certs=False,
     verify_certs=False,
diff --git a/rest_api/controller/search.py b/rest_api/controller/search.py
index ab46e4409..544db8df1 100644
--- a/rest_api/controller/search.py
+++ b/rest_api/controller/search.py
@@ -9,12 +9,12 @@ from fastapi import APIRouter
 from fastapi import HTTPException
 
 from haystack import Finder
-from rest_api.config import DB_HOST, DB_PORT, DB_USER, DB_PW, DB_INDEX, DEFAULT_TOP_K_READER, ES_CONN_SCHEME, \
-    TEXT_FIELD_NAME, SEARCH_FIELD_NAME, EMBEDDING_DIM, EMBEDDING_FIELD_NAME, EXCLUDE_META_DATA_FIELDS, \
+from rest_api.config import DB_HOST, DB_PORT, DB_USER, DB_PW, DB_INDEX, DB_INDEX_FEEDBACK, DEFAULT_TOP_K_READER, \
+    ES_CONN_SCHEME, TEXT_FIELD_NAME, SEARCH_FIELD_NAME, EMBEDDING_DIM, EMBEDDING_FIELD_NAME, EXCLUDE_META_DATA_FIELDS, \
     RETRIEVER_TYPE, EMBEDDING_MODEL_PATH, USE_GPU, READER_MODEL_PATH, BATCHSIZE, CONTEXT_WINDOW_SIZE, \
-    TOP_K_PER_CANDIDATE, NO_ANS_BOOST, READER_CAN_HAVE_NO_ANSWER, MAX_PROCESSES, MAX_SEQ_LEN, DOC_STRIDE, CONCURRENT_REQUEST_PER_WORKER, \
-    FAQ_QUESTION_FIELD_NAME, EMBEDDING_MODEL_FORMAT, READER_TYPE, READER_TOKENIZER, GPU_NUMBER, NAME_FIELD_NAME, \
-    VECTOR_SIMILARITY_METRIC, CREATE_INDEX, LOG_LEVEL
+    TOP_K_PER_CANDIDATE, NO_ANS_BOOST, READER_CAN_HAVE_NO_ANSWER, MAX_PROCESSES, MAX_SEQ_LEN, DOC_STRIDE, \
+    CONCURRENT_REQUEST_PER_WORKER, FAQ_QUESTION_FIELD_NAME, EMBEDDING_MODEL_FORMAT, READER_TYPE, READER_TOKENIZER, \
+    GPU_NUMBER, NAME_FIELD_NAME, VECTOR_SIMILARITY_METRIC, CREATE_INDEX, LOG_LEVEL
 
 from rest_api.controller.request import Question
 from rest_api.controller.response import Answers, AnswersToIndividualQuestion
@@ -40,6 +40,7 @@ document_store = ElasticsearchDocumentStore(
     username=DB_USER,
     password=DB_PW,
     index=DB_INDEX,
+    label_index=DB_INDEX_FEEDBACK,
     scheme=ES_CONN_SCHEME,
     ca_certs=False,
     verify_certs=False,