diff --git a/maintenance/extract_data/extract_data.py b/maintenance/extract_data/extract_data.py
index e90f0397..7e63127a 100644
--- a/maintenance/extract_data/extract_data.py
+++ b/maintenance/extract_data/extract_data.py
@@ -64,9 +64,11 @@ def make_data_extract(current_time, connection, zip_file_path):
 
     zip_file_path.parent.mkdir(parents=True, exist_ok=True)
 
+    source_dir_path = Path(__file__).parent
+
     try:
         with zipfile.ZipFile(zip_file_path, mode='w') as newzip:
-            newzip.write('README.txt')
+            newzip.write(source_dir_path / 'README.txt')
             newzip.write('/tmp/building_attributes.csv', arcname='building_attributes.csv')
             newzip.write('/tmp/building_uprns.csv', arcname='building_uprns.csv')
             newzip.write('/tmp/edit_history.csv', arcname='edit_history.csv')