diff --git a/src/Umbraco.Core/StringExtensions.cs b/src/Umbraco.Core/StringExtensions.cs
index d4ad152feb..abe5ae7188 100644
--- a/src/Umbraco.Core/StringExtensions.cs
+++ b/src/Umbraco.Core/StringExtensions.cs
@@ -540,7 +540,7 @@ namespace Umbraco.Core
         /// <returns>Returns the string without any html tags.</returns>
         public static string StripHtml(this string text)
         {
-            string pattern = "[*{}\\/:<>?|\"-+()\\n]";
+            const string pattern = "[*{}\\/:<>?|\"-+()\\n]";
             return Regex.Replace(text, pattern, String.Empty);
         }