diff --git a/BinderTool/Program.cs b/BinderTool/Program.cs
index 4bd3f1c..3534c86 100644
--- a/BinderTool/Program.cs
+++ b/BinderTool/Program.cs
@@ -918,6 +918,9 @@ private static byte[] GetRegulationKey(GameVersion version)
                 case GameVersion.DarkSouls3:
                     key = DecryptionKeys.RegulationFileKeyDs3;
                     break;
+                case GameVersion.EldenRing:
+                    key = DecryptionKeys.RegulationFileKeyEr;
+                    break;
                 default:
                     key = new byte[16];
                     break;