diff --git a/packages/common/src/utils.ts b/packages/common/src/utils.ts
index 0f8a32e..43f9dd5 100644
--- a/packages/common/src/utils.ts
+++ b/packages/common/src/utils.ts
@@ -61,7 +61,7 @@ export const getNotebookPath = (): string => {
 
     if (isGitRefSpecified()) {
       // Strip the file extension from the notebook path.
-      return localNotebookPath.split('.').slice(0, -1).join('.')
+      return localNotebookPath.split('.').slice(0, -1).join('.') || localNotebookPath
     } else {
       return localNotebookPath
     }