diff --git a/frappe/model/base_document.py b/frappe/model/base_document.py
index c1e5f01e03..de0c1e0e1c 100644
--- a/frappe/model/base_document.py
+++ b/frappe/model/base_document.py
@@ -856,6 +856,11 @@ class BaseDocument(object):
 			from frappe.model.meta import get_default_df
 			df = get_default_df(fieldname)
 
+		if not currency:
+			currency = self.get(df.get("options"))
+			if not frappe.db.exists('Currency', currency, cache=True):
+				currency = None
+
 		val = self.get(fieldname)
 
 		if translated: