diff --git a/src/BootstrapBlazor/Components/Upload/InputUpload.razor.cs b/src/BootstrapBlazor/Components/Upload/InputUpload.razor.cs
index 8325d1a70e71076ecbaaa17071fde92476f2c0db..778cf7f593d7f66f8f4f0ebc8eb239f896de0f97 100644
--- a/src/BootstrapBlazor/Components/Upload/InputUpload.razor.cs
+++ b/src/BootstrapBlazor/Components/Upload/InputUpload.razor.cs
@@ -18,13 +18,13 @@ public partial class InputUpload<TValue>
         .AddClass(CssClass).AddClass(ValidCss)
         .Build();
 
-    private string? RemoveButtonClassString => CssBuilder.Default("btn")
+    private string? RemoveButtonClassString => CssBuilder.Default()
         .AddClass(DeleteButtonClass)
         .Build();
 
     private bool IsDeleteButtonDisabled => IsDisabled || CurrentFile == null;
 
-    private string? BrowserButtonClassString => CssBuilder.Default("btn btn-browser")
+    private string? BrowserButtonClassString => CssBuilder.Default("btn-browser")
         .AddClass(BrowserButtonClass)
         .Build();