diff --git a/app/assets/stylesheets/govuk_publishing_components/components/_feedback.scss b/app/assets/stylesheets/govuk_publishing_components/components/_feedback.scss
index b4da0aaab9..dbf9ab42c3 100644
--- a/app/assets/stylesheets/govuk_publishing_components/components/_feedback.scss
+++ b/app/assets/stylesheets/govuk_publishing_components/components/_feedback.scss
@@ -33,10 +33,6 @@
   }
 }
 
-.gem-c-feedback__column-two-thirds {
-  @include govuk-grid-column($width: two-thirds)
-}
-
 .gem-c-feedback__prompt {
   @include govuk-clearfix;
   background-color: govuk-colour("blue");
diff --git a/app/views/govuk_publishing_components/components/feedback/_problem_form.html.erb b/app/views/govuk_publishing_components/components/feedback/_problem_form.html.erb
index fc8b4102a9..fc1b50551c 100644
--- a/app/views/govuk_publishing_components/components/feedback/_problem_form.html.erb
+++ b/app/views/govuk_publishing_components/components/feedback/_problem_form.html.erb
@@ -13,7 +13,7 @@
     role="button">Close</a>
 
   <div class="govuk-grid-row">
-    <div class="gem-c-feedback__column-two-thirds">
+    <div class="govuk-grid-column-two-thirds">
       <div class="gem-c-feedback__error-summary gem-c-feedback__js-show js-hidden js-errors" tabindex="-1"></div>
 
       <input type="hidden" name="url" value="<%= url_without_pii %>">
diff --git a/app/views/govuk_publishing_components/components/feedback/_survey_signup_form.html.erb b/app/views/govuk_publishing_components/components/feedback/_survey_signup_form.html.erb
index be999b0f30..09165ae4be 100644
--- a/app/views/govuk_publishing_components/components/feedback/_survey_signup_form.html.erb
+++ b/app/views/govuk_publishing_components/components/feedback/_survey_signup_form.html.erb
@@ -13,7 +13,7 @@
     role="button">Close</a>
 
   <div class="govuk-grid-row">
-    <div class="gem-c-feedback__column-two-thirds" id="survey-wrapper">
+    <div class="govuk-grid-column-two-thirds" id="survey-wrapper">
       <div class="gem-c-feedback__error-summary js-hidden js-errors" tabindex="-1"></div>
 
       <input name="email_survey_signup[survey_id]" type="hidden" value="footer_satisfaction_survey">