diff --git a/defaults/preferences/zotero.js b/defaults/preferences/zotero.js
index 9e04d638b..9482d83f4 100644
--- a/defaults/preferences/zotero.js
+++ b/defaults/preferences/zotero.js
@@ -57,12 +57,12 @@ pref("extensions.zotero.report.combineChildItems", true);
 // Export and citation settings
 pref("extensions.zotero.export.lastTranslator", '14763d24-8ba0-45df-8f52-b8d1108e7ac9');
 pref("extensions.zotero.export.translatorSettings", 'true,false');
-pref("extensions.zotero.export.lastStyle", 'http://www.zotero.org/styles/chicago-note.csl');
+pref("extensions.zotero.export.lastStyle", 'http://www.zotero.org/styles/chicago-note');
 pref("extensions.zotero.export.bibliographySettings", 'save-as-rtf');
 pref("extensions.zotero.export.bibliographyLocale", '');
 pref("extensions.zotero.export.citePaperJournalArticleURL", false);
 
-pref("extensions.zotero.export.quickCopy.setting", 'bibliography=http://www.zotero.org/styles/chicago-note.csl');
+pref("extensions.zotero.export.quickCopy.setting", 'bibliography=http://www.zotero.org/styles/chicago-note');
 
 // Integration settings
 pref("extensions.zotero.integration.autoRegenerate", -1);	// -1 = ask; 0 = no; 1 = yes