diff --git a/builds/4chan-X.user.js b/builds/4chan-X.user.js
index a09638157..f2aa12fc2 100644
--- a/builds/4chan-X.user.js
+++ b/builds/4chan-X.user.js
@@ -6240,7 +6240,7 @@
           }
         }
       };
-      QR.req = $.ajax("//sys.4chan.org/" + g.BOARD + "/post", options, extra);
+      QR.req = $.ajax("https://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 ef1e9fdee..5803bd0b7 100644
--- a/builds/crx/script.js
+++ b/builds/crx/script.js
@@ -6231,7 +6231,7 @@
           }
         }
       };
-      QR.req = $.ajax("//sys.4chan.org/" + g.BOARD + "/post", options, extra);
+      QR.req = $.ajax("https://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 64a99ceff..de208e863 100644
--- a/src/Posting/QR.coffee
+++ b/src/Posting/QR.coffee
@@ -618,7 +618,7 @@ QR =
           QR.req.progress = "#{Math.round e.loaded / e.total * 100}%"
           QR.status()
 
-    QR.req = $.ajax "//sys.4chan.org/#{g.BOARD}/post", options, extra
+    QR.req = $.ajax "https://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()