diff --git a/ConvertTo-Base64GUIExample/ConvertTo-Base64GUIExample.ps1 b/ConvertTo-Base64GUIExample/ConvertTo-Base64GUIExample.ps1
index 3716854..eea3df9 100644
--- a/ConvertTo-Base64GUIExample/ConvertTo-Base64GUIExample.ps1
+++ b/ConvertTo-Base64GUIExample/ConvertTo-Base64GUIExample.ps1
@@ -21,6 +21,8 @@ param(
             }
         }
         'Forms' {
+            Add-Type -AssemblyName System.Windows.Forms
+            Add-Type -AssemblyName System.Drawing
             $Form = New-Object System.Windows.Forms.Form -Property @{
                 Text = $Title
                 Size = New-Object System.Drawing.Size(300,150)