diff --git a/src/RulesEngine/RuleCompiler.cs b/src/RulesEngine/RuleCompiler.cs
index 5e510d74..41c8b114 100644
--- a/src/RulesEngine/RuleCompiler.cs
+++ b/src/RulesEngine/RuleCompiler.cs
@@ -1,4 +1,4 @@
-// Copyright (c) Microsoft Corporation.
+// Copyright (c) Microsoft Corporation.
 // Licensed under the MIT License.
 
 using RulesEngine.Exceptions;