diff --git a/middleware/data_source_queries.py b/middleware/data_source_queries.py
index f4c70e3b..ff823bce 100644
--- a/middleware/data_source_queries.py
+++ b/middleware/data_source_queries.py
@@ -110,7 +110,7 @@ def data_source_by_id_wrapper(arg, conn: PgConnection) -> Response:
         return make_response(data_source_details, 200)
 
     else:
-        return make_response({"message": "Data source not found."}, 404)
+        return make_response({"message": "Data source not found."}, 200)
 
 
 def get_data_sources_for_map_wrapper(conn: PgConnection):
diff --git a/tests/middleware/test_data_source_queries.py b/tests/middleware/test_data_source_queries.py
index 98276de8..201ca518 100644
--- a/tests/middleware/test_data_source_queries.py
+++ b/tests/middleware/test_data_source_queries.py
@@ -188,4 +188,4 @@ def test_data_source_by_id_wrapper_data_not_found(mock_data_source_by_id_query,
     mock_data_source_by_id_query.assert_called_with(
         data_source_id="SOURCE_UID_1", conn=mock_conn
     )
-    mock_make_response.assert_called_with({"message": "Data source not found."}, 404)
\ No newline at end of file
+    mock_make_response.assert_called_with({"message": "Data source not found."}, 200)
\ No newline at end of file