diff --git a/assets/js/postcode-eu-autofill.js b/assets/js/postcode-eu-autofill.js
index c5647cc..eb6d0e7 100644
--- a/assets/js/postcode-eu-autofill.js
+++ b/assets/js/postcode-eu-autofill.js
@@ -116,7 +116,7 @@
 		{
 			const addressPart = PostcodeNlAddressFieldMapping.mapping[key];
 
-			if (mappedValues.has(addressPart))
+			if (mappedValues.has(addressPart) && addressFields[key].length > 0)
 			{
 				const field = addressFields[key].val(mappedValues.get(addressPart))[0];
 				field.dispatchEvent(new Event('change'));