diff --git a/erpnext/setup/utils.py b/erpnext/setup/utils.py
index 01e0b7d441..d1c206d8b1 100644
--- a/erpnext/setup/utils.py
+++ b/erpnext/setup/utils.py
@@ -93,7 +93,7 @@ def get_exchange_rate(from_currency, to_currency, transaction_date=None, args=No
 
 	try:
 		cache = frappe.cache()
-		key = "currency_exchange_rate:{0}:{1}".format(from_currency, to_currency)
+		key = "currency_exchange_rate_{0}:{1}:{2}".format(transaction_date,from_currency, to_currency)
 		value = cache.get(key)
 
 		if not value:
@@ -143,4 +143,4 @@ def insert_record(records):
 def welcome_email():
 	site_name = get_default_company()
 	title = _("Welcome to {0}".format(site_name))
-	return title
\ No newline at end of file
+	return title