diff --git a/project/Aki.Custom/Patches/SettingsLocationPatch.cs b/project/Aki.Custom/Patches/SettingsLocationPatch.cs
index 6e786c9..895021a 100644
--- a/project/Aki.Custom/Patches/SettingsLocationPatch.cs
+++ b/project/Aki.Custom/Patches/SettingsLocationPatch.cs
@@ -11,7 +11,7 @@ namespace Aki.Custom.Patches
     /// </summary>
     public class SettingsLocationPatch : ModulePatch
     {
-        private static string _sptPath = Path.Combine(Environment.CurrentDirectory, "user", "sptSettings");
+        private static readonly string _sptPath = Path.Combine(Environment.CurrentDirectory, "user", "sptSettings");
 
         protected override MethodBase GetTargetMethod()
         {