diff --git a/src/PhoneNumbers/CountryInfo.cs b/src/PhoneNumbers/CountryInfo.cs
index a1f84d20..a7902220 100644
--- a/src/PhoneNumbers/CountryInfo.cs
+++ b/src/PhoneNumbers/CountryInfo.cs
@@ -215,7 +215,7 @@ private string ReadNationalSignificantNumber(string value, int startPos)
         {
             var startsWithTrunkPrefix = true;
 
-            for (int i = 0; i < TrunkPrefix.Length; i++)
+            for (var i = 0; i < TrunkPrefix.Length; i++)
             {
                 if (ar[i] != TrunkPrefix[i])
                 {