diff --git a/app/MindWork AI Studio/Tools/Services/RustService.FileSystem.cs b/app/MindWork AI Studio/Tools/Services/RustService.FileSystem.cs
index e44dfa7f..4a066843 100644
--- a/app/MindWork AI Studio/Tools/Services/RustService.FileSystem.cs	
+++ b/app/MindWork AI Studio/Tools/Services/RustService.FileSystem.cs	
@@ -7,7 +7,8 @@ public sealed partial class RustService
     public async Task<DirectorySelectionResponse> SelectDirectory(string title, string? initialDirectory = null)
     {
         PreviousDirectory? previousDirectory = initialDirectory is null ? null : new (initialDirectory);
-        var result = await this.http.PostAsJsonAsync($"/select/directory?title={title}", previousDirectory, this.jsonRustSerializerOptions);
+        var encodedTitle = Uri.EscapeDataString(title);
+        var result = await this.http.PostAsJsonAsync($"/select/directory?title={encodedTitle}", previousDirectory, this.jsonRustSerializerOptions);
         if (!result.IsSuccessStatusCode)
         {
             this.logger!.LogError($"Failed to select a directory: '{result.StatusCode}'");