diff --git a/chrome/content/zotero/xpcom/mimeTypeHandler.js b/chrome/content/zotero/xpcom/mimeTypeHandler.js
index 9a7af70348..e1f590d9be 100644
--- a/chrome/content/zotero/xpcom/mimeTypeHandler.js
+++ b/chrome/content/zotero/xpcom/mimeTypeHandler.js
@@ -70,7 +70,8 @@ Zotero.MIMETypeHandler = new function () {
 			// Not even trying
 			this.addHandler("ris", _importHandler, true);
 		}
-		this.addHandler("text/x-csl", function(a1, a2) { Zotero.Styles.install(a1, a2) });
+		this.addHandler("application/vnd.citationstyles.style+xml", function(a1, a2) { Zotero.Styles.install(a1, a2) });
+		this.addHandler("text/x-csl", function(a1, a2) { Zotero.Styles.install(a1, a2) }); // deprecated
 		this.addHandler("application/x-zotero-schema", Zotero.Schema.importSchema);
 		this.addHandler("application/x-zotero-settings", Zotero.Prefs.importSettings);
 	}