diff --git a/Source/Editor/Content/Proxy/ShaderProxy.cs b/Source/Editor/Content/Proxy/ShaderProxy.cs
index 2f5c6fe42..98d4eaa2d 100644
--- a/Source/Editor/Content/Proxy/ShaderProxy.cs
+++ b/Source/Editor/Content/Proxy/ShaderProxy.cs
@@ -29,7 +29,7 @@ namespace FlaxEditor.Content
             if (asset)
             {
                 var source = Editor.GetShaderSourceCode(asset);
-                Utilities.Utils.ShowSourceCodeWindow(source, "Shader Source", item.RootWindow.Window);
+                Utilities.Utils.ShowSourceCodeWindow(source, "Shader Source", item.RootWindow?.Window);
             }
             return null;
         }