diff --git a/4chan_x.user.js b/4chan_x.user.js
index fd2cf8d17..d9f1d51f8 100644
--- a/4chan_x.user.js
+++ b/4chan_x.user.js
@@ -2515,6 +2515,9 @@
       }
       if (err) {
         if (/captcha|verification/i.test(err.textContent) || err === 'Connection error with sys.4chan.org.') {
+          if (/mistyped/i.test(err.textContent)) {
+            err.textContent = 'Error: You seem to have mistyped the CAPTCHA.';
+          }
           QR.cooldown.auto = QR.captchaIsEnabled ? !!$.get('captchas', []).length : true;
           QR.cooldown.set(2);
         } else {
diff --git a/changelog b/changelog
index e4441a303..072d22d24 100644
--- a/changelog
+++ b/changelog
@@ -1,5 +1,6 @@
 master
 - Mayhem
+  Removed the obnoxious 4chan Pass ad in captcha errors when posting.
   Fix 'Administrator/Moderator/Developer Replies' creating extra backlinks on /q/, again.
 
 2.35.3
diff --git a/script.coffee b/script.coffee
index aa4dd3070..5e27683ca 100644
--- a/script.coffee
+++ b/script.coffee
@@ -1957,6 +1957,9 @@ QR =
 
     if err
       if /captcha|verification/i.test(err.textContent) or err is 'Connection error with sys.4chan.org.'
+        # Remove the obnoxious 4chan Pass ad.
+        if /mistyped/i.test err.textContent
+          err.textContent = 'Error: You seem to have mistyped the CAPTCHA.'
         # Enable auto-post if we have some cached captchas.
         QR.cooldown.auto =
           if QR.captchaIsEnabled