diff --git a/src/sql/workbench/contrib/notebook/browser/notebook.contribution.ts b/src/sql/workbench/contrib/notebook/browser/notebook.contribution.ts
index 0f15ace551..ccbf798929 100644
--- a/src/sql/workbench/contrib/notebook/browser/notebook.contribution.ts
+++ b/src/sql/workbench/contrib/notebook/browser/notebook.contribution.ts
@@ -182,7 +182,7 @@ CommandsRegistry.registerCommand({
 		for (let editor of editors) {
 			if (editor instanceof NotebookInput) {
 				let model: INotebookModel = editor.notebookModel;
-				if (model.providerId === 'jupyter') {
+				if (model.providerId === 'jupyter' && model.clientSession.isReady) {
 					// Jupyter server needs to be restarted so that the correct Python installation is used
 					if (!jupyterServerRestarted) {
 						let jupyterNotebookManager: INotebookManager = model.notebookManagers.find(x => x.providerId === 'jupyter');