diff --git a/src/frontend/src/components/editors/NotesEditor.tsx b/src/frontend/src/components/editors/NotesEditor.tsx
index c849311f99..2d04ca75a6 100644
--- a/src/frontend/src/components/editors/NotesEditor.tsx
+++ b/src/frontend/src/components/editors/NotesEditor.tsx
@@ -142,7 +142,12 @@ export default function NotesEditor({
 
   // Callback to save notes to the server
   const saveNotes = useCallback(() => {
-    const markdown = ref.current?.getMarkdown() ?? '';
+    const markdown = ref.current?.getMarkdown();
+
+    if (!noteUrl || markdown === undefined) {
+      return;
+    }
+
     api
       .patch(noteUrl, { notes: markdown })
       .then(() => {
diff --git a/src/frontend/tests/pages/pui_part.spec.ts b/src/frontend/tests/pages/pui_part.spec.ts
index bcf8d86ff1..92df792a54 100644
--- a/src/frontend/tests/pages/pui_part.spec.ts
+++ b/src/frontend/tests/pages/pui_part.spec.ts
@@ -212,6 +212,7 @@ test('PUI - Pages - Part - Notes', async ({ page }) => {
     .fill('This is some data\n');
 
   // Save
+  await page.waitForTimeout(1000);
   await page.getByLabel('save-notes').click();
   await page.getByText('Notes saved successfully').waitFor();