diff --git a/chrome/locale/en-US/zotero/zotero.dtd b/chrome/locale/en-US/zotero/zotero.dtd
index 2abd7b97b..55e3d0ba8 100644
--- a/chrome/locale/en-US/zotero/zotero.dtd
+++ b/chrome/locale/en-US/zotero/zotero.dtd
@@ -238,3 +238,5 @@
 <!ENTITY zotero.file.noneSelected.label			"No file selected">
 
 <!ENTITY zotero.downloadManager.label			"Save to Zotero">
+<!ENTITY zotero.downloadManager.saveToLibrary.description	"Attachments cannot be saved to the currently selected library. This item will be saved to your library instead.">
+<!ENTITY zotero.downloadManager.noPDFTools.description	"To use this feature, you must first install the PDF tools in the Zotero preferences.">