diff --git a/test/javascripts/lib/markdown-test.js.es6 b/test/javascripts/lib/markdown-test.js.es6
index 59222a90a3a..6e8f6e86a00 100644
--- a/test/javascripts/lib/markdown-test.js.es6
+++ b/test/javascripts/lib/markdown-test.js.es6
@@ -510,9 +510,9 @@ test("sanitize", function() {
 
   cooked("<i class=\"fa fa-bug fa-spin\" style=\"font-size:600%\"></i>\n<!-- -->", "<p><i></i><br/></p>", "it doesn't circumvent XSS with comments");
 
-  cooked("<span class=\"-bbcode-size-0 fa fa-spin\">a</span>", "<p><span>a</span></p>", "it sanitizes spans");
-  cooked("<span class=\"fa fa-spin -bbcode-size-0\">a</span>", "<p><span>a</span></p>", "it sanitizes spans");
-  cooked("<span class=\"bbcode-size-10\">a</span>", "<p><span class=\"bbcode-size-10\">a</span></p>", "it sanitizes spans");
+  cooked("<span class=\"-bbcode-s fa fa-spin\">a</span>", "<p><span>a</span></p>", "it sanitizes spans");
+  cooked("<span class=\"fa fa-spin -bbcode-s\">a</span>", "<p><span>a</span></p>", "it sanitizes spans");
+  cooked("<span class=\"bbcode-s\">a</span>", "<p><span class=\"bbcode-s\">a</span></p>", "it sanitizes spans");
 });
 
 test("URLs in BBCode tags", function() {