diff --git a/swh/web/common/archive.py b/swh/web/common/archive.py
--- a/swh/web/common/archive.py
+++ b/swh/web/common/archive.py
@@ -385,7 +385,10 @@
 
     """
     results = []
-    if search and config.get_config()["search_config"]["backend"] == "swh-search":
+    if (
+        search
+        and config.get_config()["search_config"]["metadata_backend"] == "swh-search"
+    ):
         page_result = search.origin_search(metadata_pattern=fulltext, limit=limit,)
         matches = idx_storage.origin_intrinsic_metadata_get(
             [r["url"] for r in page_result.results]
diff --git a/swh/web/config.py b/swh/web/config.py
--- a/swh/web/config.py
+++ b/swh/web/config.py
@@ -59,7 +59,10 @@
     ),
     "search_config": (
         "dict",
-        {"backend": "swh-indexer-storage", "enable_ql": False},  # or "swh-search"
+        {
+            "metadata_backend": "swh-indexer-storage",  # or "swh-search"
+            "enable_ql": False,
+        },
     ),
     "log_dir": ("string", "/tmp/swh/log"),
     "debug": ("bool", False),
diff --git a/swh/web/tests/api/views/test_origin.py b/swh/web/tests/api/views/test_origin.py
--- a/swh/web/tests/api/views/test_origin.py
+++ b/swh/web/tests/api/views/test_origin.py
@@ -549,7 +549,7 @@
 def test_api_origin_search_use_ql(api_client, mocker):
     mock_config = mocker.patch("swh.web.common.archive.config")
     mock_config.get_config.return_value = {
-        "search_config": {"backend": "swh-search", "enable_ql": True}
+        "search_config": {"metadata_backend": "swh-search", "enable_ql": True}
     }
 
     expected_origins = {
@@ -624,7 +624,9 @@
 def test_api_origin_metadata_search(api_client, mocker, backend):
 
     mock_config = mocker.patch("swh.web.common.archive.config")
-    mock_config.get_config.return_value = {"search_config": {"backend": backend}}
+    mock_config.get_config.return_value = {
+        "search_config": {"metadata_backend": backend}
+    }
 
     url = reverse(
         "api-1-origin-metadata-search", query_params={"fulltext": ORIGIN_METADATA_VALUE}