diff --git a/chrome/content/zotero/xpcom/server_connector.js b/chrome/content/zotero/xpcom/server_connector.js
index 489fb718d1..93f41dd625 100755
--- a/chrome/content/zotero/xpcom/server_connector.js
+++ b/chrome/content/zotero/xpcom/server_connector.js
@@ -423,6 +423,7 @@ Zotero.Server.Connector.IncompatibleVersion.prototype = {
 		sendResponseCallback(404);
 		if(Zotero.Server.Connector.IncompatibleVersion._errorShown) return;
 		
+		Zotero.Integration.activate();
 		var ps = Components.classes["@mozilla.org/embedcomp/prompt-service;1"].
 				createInstance(Components.interfaces.nsIPromptService);
 		ps.confirm(null,