diff --git a/ModernWpf.Controls/ContentDialog/ContentDialog.cs b/ModernWpf.Controls/ContentDialog/ContentDialog.cs
index e099c2d7..78cbdbbc 100644
--- a/ModernWpf.Controls/ContentDialog/ContentDialog.cs
+++ b/ModernWpf.Controls/ContentDialog/ContentDialog.cs
@@ -848,7 +848,7 @@ private void HandleKeyDown(KeyEventArgs e)
                             button = PrimaryButton ?? SecondaryButton ?? CloseButton;
                         }
 
-                        if (button != null)
+                        if (button != null && button.IsEnabled)
                         {
                             OnButtonClick(button, null);
                             e.Handled = true;