diff --git a/src/Microsoft.Kusto.ServiceLayer/Workspace/Workspace.cs b/src/Microsoft.Kusto.ServiceLayer/Workspace/Workspace.cs
index 11962886..4dae33a7 100644
--- a/src/Microsoft.Kusto.ServiceLayer/Workspace/Workspace.cs
+++ b/src/Microsoft.Kusto.ServiceLayer/Workspace/Workspace.cs
@@ -30,7 +30,8 @@ namespace Microsoft.Kusto.ServiceLayer.Workspace
         {
             "file",
             UntitledScheme,
-            "tsqloutput"
+            "tsqloutput",
+            "vscode-notebook-cell"
         };
 
         private Dictionary<string, ScriptFile> workspaceFiles = new Dictionary<string, ScriptFile>();
diff --git a/src/Microsoft.SqlTools.ServiceLayer/Workspace/Workspace.cs b/src/Microsoft.SqlTools.ServiceLayer/Workspace/Workspace.cs
index d88e2608..192605f0 100644
--- a/src/Microsoft.SqlTools.ServiceLayer/Workspace/Workspace.cs
+++ b/src/Microsoft.SqlTools.ServiceLayer/Workspace/Workspace.cs
@@ -32,7 +32,8 @@ namespace Microsoft.SqlTools.ServiceLayer.Workspace
         {
             "file",
             UntitledScheme,
-            "tsqloutput"
+            "tsqloutput",
+            "vscode-notebook-cell"
         };
 
         private Dictionary<string, ScriptFile> workspaceFiles = new Dictionary<string, ScriptFile>();