diff --git a/Source/Editor/Content/Items/ContentFolder.cs b/Source/Editor/Content/Items/ContentFolder.cs
index a654ea697..86c374fee 100644
--- a/Source/Editor/Content/Items/ContentFolder.cs
+++ b/Source/Editor/Content/Items/ContentFolder.cs
@@ -3,6 +3,7 @@
 using System;
 using System.Collections.Generic;
 using System.IO;
+using System.Text;
 using FlaxEditor.GUI.Drag;
 using FlaxEngine;
 using FlaxEngine.GUI;
diff --git a/Source/Editor/Content/Items/ContentItem.cs b/Source/Editor/Content/Items/ContentItem.cs
index 60adb1caa..2a0390b30 100644
--- a/Source/Editor/Content/Items/ContentItem.cs
+++ b/Source/Editor/Content/Items/ContentItem.cs
@@ -2,6 +2,8 @@
 
 using System;
 using System.Collections.Generic;
+using System.IO;
+using System.Text;
 using FlaxEditor.Content.GUI;
 using FlaxEditor.GUI.Drag;
 using FlaxEngine;