diff --git a/tools/code-owners-parser/CodeOwnersParser/CodeownersFile.cs b/tools/code-owners-parser/CodeOwnersParser/CodeownersFile.cs
index 30899be335f..47a48476754 100644
--- a/tools/code-owners-parser/CodeOwnersParser/CodeownersFile.cs
+++ b/tools/code-owners-parser/CodeOwnersParser/CodeownersFile.cs
@@ -8,7 +8,7 @@ namespace Azure.Sdk.Tools.CodeOwnersParser
 {
     public static class CodeownersFile
     {
-        private const bool UseRegexMatcherDefault = false;
+        private const bool UseRegexMatcherDefault = true;
 
         public static List<CodeownersEntry> GetCodeownersEntriesFromFileOrUrl(
             string codeownersFilePathOrUrl)