diff --git a/chrome/locale/en-US/zotero/zotero.properties b/chrome/locale/en-US/zotero/zotero.properties
index a816885627..4fcabb90a3 100644
--- a/chrome/locale/en-US/zotero/zotero.properties
+++ b/chrome/locale/en-US/zotero/zotero.properties
@@ -1298,6 +1298,7 @@ noteEditor.monospaced = Monospaced
 noteEditor.bulletList = Bulleted List
 noteEditor.orderedList = Numbered List
 noteEditor.blockquote = Block Quote
+noteEditor.mathBlock = Math Block
 noteEditor.formatText = Format Text
 noteEditor.highlightText = Highlight Text
 noteEditor.removeColor = Remove Color