diff --git a/app/assets/stylesheets/generic/forms.scss b/app/assets/stylesheets/generic/forms.scss
index bd9d4bceb83be2b18c0380d89b582ec2a7222126..5258acca466388c6eb6c06cb925463e9bbd3216e 100644
--- a/app/assets/stylesheets/generic/forms.scss
+++ b/app/assets/stylesheets/generic/forms.scss
@@ -82,6 +82,7 @@ label {
   font-family: $monospace_font;
   $left: 12px;
   .max-width-marker {
+    width: 72ch;
     color: rgba(0, 0, 0, 0.0);
     font-family: inherit;
     left: $left;
diff --git a/app/views/shared/_commit_message_container.html.haml b/app/views/shared/_commit_message_container.html.haml
index cca7a0efc9b7152022c7a118362b4312a06ae267..4365947e7015a0682a103935be25cdebd3a62055 100644
--- a/app/views/shared/_commit_message_container.html.haml
+++ b/app/views/shared/_commit_message_container.html.haml
@@ -1,5 +1,3 @@
 .commit-message-container
   .max-width-marker
-    -# When the `ch` CSS length unit becomes widely supported `http://www.quirksmode.org/css/units-values` remove this workaround.
-    = 'a' * 72
   = textarea