diff --git a/mailnews/compose/resources/content/MsgComposeCommands.js b/mailnews/compose/resources/content/MsgComposeCommands.js
index 3e7504d9b83..5ca3ad69e3b 100644
--- a/mailnews/compose/resources/content/MsgComposeCommands.js
+++ b/mailnews/compose/resources/content/MsgComposeCommands.js
@@ -1516,7 +1516,7 @@ function AttachPage()
 {
     if (promptService)
     {
-        var result = {value:0};
+        var result = {value:""};
         if (promptService.prompt(
         	window,
         	gComposeMsgsBundle.getString("attachPageDlogTitle"),