diff --git a/docs/naming.md b/docs/naming.md
index 2d855a4b19..535fafd56a 100644
--- a/docs/naming.md
+++ b/docs/naming.md
@@ -617,7 +617,7 @@ public static string NameWithParent(this Type type)
     return type.Name;
 }
 ```
-<sup><a href='/src/Verify/Extensions.cs#L99-L111' title='Snippet source file'>snippet source</a> | <a href='#snippet-namewithparent' title='Start of snippet'>anchor</a></sup>
+<sup><a href='/src/Verify/Extensions.cs#L85-L97' title='Snippet source file'>snippet source</a> | <a href='#snippet-namewithparent' title='Start of snippet'>anchor</a></sup>
 <!-- endSnippet -->
 
 
diff --git a/src/Verify/Extensions.cs b/src/Verify/Extensions.cs
index a16a6ba53c..7451939759 100644
--- a/src/Verify/Extensions.cs
+++ b/src/Verify/Extensions.cs
@@ -52,20 +52,6 @@ static bool CanReadLength(this Stream stream)
     public static string TrimPreamble(this string text) =>
         text.TrimStart('\uFEFF');
 
-    public static bool Contains(this StringBuilder builder, char ch)
-    {
-        for (var index = 0; index < builder.Length; index++)
-        {
-            var item = builder[index];
-            if (ch == item)
-            {
-                return true;
-            }
-        }
-
-        return false;
-    }
-
     public static void Enqueue<T>(this Queue<T> queue, IEnumerable<T> items)
     {
         foreach (var item in items)