diff --git a/src/FilterLists.Services/Extensions/StringExtensions.cs b/src/FilterLists.Services/Extensions/StringExtensions.cs
index bc7b7b885..d48d163d7 100644
--- a/src/FilterLists.Services/Extensions/StringExtensions.cs
+++ b/src/FilterLists.Services/Extensions/StringExtensions.cs
@@ -12,7 +12,7 @@ public static bool IsValidHttpOrHttpsUrl(this string source) =>
         public static int GetNthIndexOfChar(this string s, int n, char t)
         {
             if (n < 1)
-                throw new ArgumentOutOfRangeException();
+                throw new ArgumentOutOfRangeException($"n = {n}");
             var nthIndexOfChar = s.TakeWhile(c => (n -= c == t ? 1 : 0) > 0).Count();
             return nthIndexOfChar == s.Length ? -1 : nthIndexOfChar;
         }
diff --git a/tests/FilterLists.Data.Tests/FilterLists.Data.Tests.ruleset b/tests/FilterLists.Data.Tests/FilterLists.Data.Tests.ruleset
index e4169cd7d..a3be703a8 100644
--- a/tests/FilterLists.Data.Tests/FilterLists.Data.Tests.ruleset
+++ b/tests/FilterLists.Data.Tests/FilterLists.Data.Tests.ruleset
@@ -70,5 +70,6 @@
   </Rules>
   <Rules AnalyzerId="Microsoft.CodeQuality.Analyzers" RuleNamespace="Microsoft.CodeQuality.Analyzers">
     <Rule Id="CA2007" Action="None" />
+    <Rule Id="CA1707" Action="None" />
   </Rules>
 </RuleSet>
\ No newline at end of file
diff --git a/tests/FilterLists.Services.Tests/FilterLists.Services.Tests.ruleset b/tests/FilterLists.Services.Tests/FilterLists.Services.Tests.ruleset
index e4169cd7d..a3be703a8 100644
--- a/tests/FilterLists.Services.Tests/FilterLists.Services.Tests.ruleset
+++ b/tests/FilterLists.Services.Tests/FilterLists.Services.Tests.ruleset
@@ -70,5 +70,6 @@
   </Rules>
   <Rules AnalyzerId="Microsoft.CodeQuality.Analyzers" RuleNamespace="Microsoft.CodeQuality.Analyzers">
     <Rule Id="CA2007" Action="None" />
+    <Rule Id="CA1707" Action="None" />
   </Rules>
 </RuleSet>
\ No newline at end of file