diff --git a/src/Posting/Captcha.v1.coffee b/src/Posting/Captcha.v1.coffee
index 67154e166..f994d8cb8 100644
--- a/src/Posting/Captcha.v1.coffee
+++ b/src/Posting/Captcha.v1.coffee
@@ -29,7 +29,7 @@ Captcha.v1 =
     $.on input, 'keydown', QR.captcha.keydown.bind QR.captcha
     $.on @nodes.img.parentNode, 'click', QR.captcha.reload.bind QR.captcha
 
-    $.addClass QR.nodes.el, 'has-captcha'
+    $.addClass QR.nodes.el, 'has-captcha', 'captcha-v1'
     $.after QR.nodes.com.parentNode, [imgContainer, input]
 
     @captchas = []
diff --git a/src/Posting/Captcha.v2.coffee b/src/Posting/Captcha.v2.coffee
index d44679378..d4bb8c533 100644
--- a/src/Posting/Captcha.v2.coffee
+++ b/src/Posting/Captcha.v2.coffee
@@ -22,7 +22,7 @@ Captcha.v2 =
     counter   = $ '.captcha-counter > a', root
     @nodes = {root, counter}
     @count()
-    $.addClass QR.nodes.el, 'has-captcha'
+    $.addClass QR.nodes.el, 'has-captcha', 'captcha-v2'
     $.after QR.nodes.com.parentNode, root
 
     $.on counter, 'click', @toggle.bind @