diff --git a/chrome/locale/en-US/zotero/zotero.dtd b/chrome/locale/en-US/zotero/zotero.dtd
index 29b1a419f..dd99f00cf 100644
--- a/chrome/locale/en-US/zotero/zotero.dtd
+++ b/chrome/locale/en-US/zotero/zotero.dtd
@@ -175,7 +175,7 @@
 <!ENTITY zotero.tagColorChooser.setColor       "Set Color">
 <!ENTITY zotero.tagColorChooser.removeColor    "Remove Color">
 
-<!ENTITY zotero.lookup.description				"Enter one or more ISBNs, DOIs, or PMIDs to look up in the box below.">
+<!ENTITY zotero.lookup.description				"Enter ISBNs, DOIs, PMIDs, or arXiv IDs to add to your library:">
 <!ENTITY zotero.lookup.button.search				"Search">
 
 <!ENTITY zotero.selectitems.title						"Select Items">