diff --git a/builds/appchan-x.user.js b/builds/appchan-x.user.js
index dfbfe8ca2..5ed56c3b4 100644
--- a/builds/appchan-x.user.js
+++ b/builds/appchan-x.user.js
@@ -8835,7 +8835,7 @@
           }
         }
       };
-      QR.req = $.ajax($.id('postForm').parentNode.action, options, extra);
+      QR.req = $.ajax("//sys.4chan.org/" + g.BOARD + "/post", options, extra);
       QR.req.uploadStartTime = Date.now();
       QR.req.progress = '...';
       return QR.status();
diff --git a/builds/crx/script.js b/builds/crx/script.js
index dca6dffc8..7ab693e49 100644
--- a/builds/crx/script.js
+++ b/builds/crx/script.js
@@ -8826,7 +8826,7 @@
           }
         }
       };
-      QR.req = $.ajax($.id('postForm').parentNode.action, options, extra);
+      QR.req = $.ajax("//sys.4chan.org/" + g.BOARD + "/post", options, extra);
       QR.req.uploadStartTime = Date.now();
       QR.req.progress = '...';
       return QR.status();
diff --git a/src/Posting/QR.coffee b/src/Posting/QR.coffee
index 7757c5d7e..0c4ba8a46 100644
--- a/src/Posting/QR.coffee
+++ b/src/Posting/QR.coffee
@@ -593,7 +593,7 @@ QR =
           QR.req.progress = "#{Math.round e.loaded / e.total * 100}%"
           QR.status()
 
-    QR.req = $.ajax $.id('postForm').parentNode.action, options, extra
+    QR.req = $.ajax "//sys.4chan.org/#{g.BOARD}/post", options, extra
     # Starting to upload might take some time.
     # Provide some feedback that we're starting to submit.
     QR.req.uploadStartTime = Date.now()