diff --git a/Classes/ContactDetailsTableView.m b/Classes/ContactDetailsTableView.m
index 9e4124008..f8783d859 100644
--- a/Classes/ContactDetailsTableView.m
+++ b/Classes/ContactDetailsTableView.m
@@ -119,7 +119,7 @@
 
 - (BOOL)isValid {
 	BOOL hasName = (_contact.firstName.length + _contact.lastName.length > 0);
-	BOOL hasAddr = ((NSString *)_contact.phoneNumbers[0]).length + ((NSString *)_contact.sipAddresses[0]).length > 0;
+	BOOL hasAddr = (_contact.phoneNumbers.count + _contact.sipAddresses.count) > 0;
 	return hasName && hasAddr;
 }