diff --git a/Bloxstrap/UI/Elements/Editor/BootstrapperEditorWindow.xaml.cs b/Bloxstrap/UI/Elements/Editor/BootstrapperEditorWindow.xaml.cs
index 03987ea..69623b7 100644
--- a/Bloxstrap/UI/Elements/Editor/BootstrapperEditorWindow.xaml.cs
+++ b/Bloxstrap/UI/Elements/Editor/BootstrapperEditorWindow.xaml.cs
@@ -321,6 +321,9 @@ namespace Bloxstrap.UI.Elements.Editor
         {
             CloseCompletionWindow();
 
+            if (!completionData.Any())
+                return;
+
             _completionWindow = new CompletionWindow(UIXML.TextArea);
 
             IList<ICompletionData> data = _completionWindow.CompletionList.CompletionData;