diff --git a/MVMCoreUI/Utility/MVMCoreUIUtility.m b/MVMCoreUI/Utility/MVMCoreUIUtility.m
index 887d7438..01a8c435 100644
--- a/MVMCoreUI/Utility/MVMCoreUIUtility.m
+++ b/MVMCoreUI/Utility/MVMCoreUIUtility.m
@@ -150,8 +150,8 @@
         if(mdn.length == LengthContactNumber) {
             NSMutableString * newmdn = [NSMutableString stringWithCapacity:14];
             [newmdn appendString:mdn];
-            [newmdn insertString:@"." atIndex:6];
-            [newmdn insertString:@"." atIndex:3];
+            [newmdn insertString:@"-" atIndex:6];
+            [newmdn insertString:@"-" atIndex:3];
             
             return newmdn;
         }