diff --git a/chrome/content/zotero/itemTree.jsx b/chrome/content/zotero/itemTree.jsx
index 99a012c0ea..2bfeaf6ad6 100644
--- a/chrome/content/zotero/itemTree.jsx
+++ b/chrome/content/zotero/itemTree.jsx
@@ -2814,7 +2814,8 @@ var ItemTree = class ItemTree extends LibraryTree {
 		else {
 			cell = renderCell.apply(this, arguments);
 			if (column.dataKey === 'numNotes' && data) {
-				cell.setAttribute('aria-label', Zotero.getString('pane.item.notes.count', data, data) + '.');
+				cell.dataset.l10nId = 'items-table-cell-notes';
+				cell.dataset.l10nArgs = JSON.stringify({ count: data });
 			}
 			else if (column.dataKey === 'itemType') {
 				cell.setAttribute('aria-hidden', true);
diff --git a/chrome/locale/en-US/zotero/zotero.ftl b/chrome/locale/en-US/zotero/zotero.ftl
index 1a176ce447..3124d1af0c 100644
--- a/chrome/locale/en-US/zotero/zotero.ftl
+++ b/chrome/locale/en-US/zotero/zotero.ftl
@@ -87,6 +87,12 @@ import-online-relink-only =
     .label = Relink Mendeley Desktop citations
 import-online-relink-kb = More Information
 
+items-table-cell-notes =
+    .aria-label = { $count ->
+        [one] { $count } Note
+        *[other] { $count } Notes
+    }
+
 report-error =
     .label = Report Error…