diff --git a/tst/memfs-dotnet/Program.cs b/tst/memfs-dotnet/Program.cs
index 3d5b04d2..a3802b61 100644
--- a/tst/memfs-dotnet/Program.cs
+++ b/tst/memfs-dotnet/Program.cs
@@ -1066,40 +1066,40 @@ namespace memfs
                         break;
                     switch (Arg[1])
                     {
-                        case '?':
-                            throw new CommandLineUsageException();
-                        case 'D':
-                            argtos(Args, ref I, ref DebugLogFile);
-                            break;
-                        case 'd':
-                            argtol(Args, ref I, ref DebugFlags);
-                            break;
-                        case 'F':
-                            argtos(Args, ref I, ref FileSystemName);
-                            break;
-                        case 'i':
-                            CaseInsensitive = true;
-                            break;
-                        case 'm':
-                            argtos(Args, ref I, ref MountPoint);
-                            break;
-                        case 'n':
-                            argtol(Args, ref I, ref MaxFileNodes);
-                            break;
-                        case 'S':
-                            argtos(Args, ref I, ref RootSddl);
-                            break;
-                        case 's':
-                            argtol(Args, ref I, ref MaxFileSize);
-                            break;
-                        case 't':
-                            argtol(Args, ref I, ref FileInfoTimeout);
-                            break;
-                        case 'u':
-                            argtos(Args, ref I, ref VolumePrefix);
-                            break;
-                        default:
-                            throw new CommandLineUsageException();
+                    case '?':
+                        throw new CommandLineUsageException();
+                    case 'D':
+                        argtos(Args, ref I, ref DebugLogFile);
+                        break;
+                    case 'd':
+                        argtol(Args, ref I, ref DebugFlags);
+                        break;
+                    case 'F':
+                        argtos(Args, ref I, ref FileSystemName);
+                        break;
+                    case 'i':
+                        CaseInsensitive = true;
+                        break;
+                    case 'm':
+                        argtos(Args, ref I, ref MountPoint);
+                        break;
+                    case 'n':
+                        argtol(Args, ref I, ref MaxFileNodes);
+                        break;
+                    case 'S':
+                        argtos(Args, ref I, ref RootSddl);
+                        break;
+                    case 's':
+                        argtol(Args, ref I, ref MaxFileSize);
+                        break;
+                    case 't':
+                        argtol(Args, ref I, ref FileInfoTimeout);
+                        break;
+                    case 'u':
+                        argtos(Args, ref I, ref VolumePrefix);
+                        break;
+                    default:
+                        throw new CommandLineUsageException();
                     }
                 }