diff --git a/etl/bill_savings/data_collection.py b/etl/bill_savings/data_collection.py
index 793c13c4..873bf957 100644
--- a/etl/bill_savings/data_collection.py
+++ b/etl/bill_savings/data_collection.py
@@ -24,7 +24,7 @@ BASE_ENERGY_URL = "https://find-energy-certificate.service.gov.uk"
 def calculate_expiry_date(lodgement_date):
     lodgement_date_dt = datetime.strptime(lodgement_date, '%Y-%m-%d')
     expiry_date_dt = lodgement_date_dt + relativedelta(years=10) - timedelta(days=1)
-    return expiry_date_dt.strftime('%d %B %Y')
+    return expiry_date_dt.strftime('%-d %B %Y')
 
 
 def retrieve_find_my_epc_data(uprn: int, postcode: str, address: str, expected_expiry_date: str):