diff --git a/js/id/ui/commit.js b/js/id/ui/commit.js
index 7da066b03..9eeb63e06 100644
--- a/js/id/ui/commit.js
+++ b/js/id/ui/commit.js
@@ -31,7 +31,13 @@ iD.ui.Commit = function(context) {
         function changesLength(d) { return changes[d].length; }
 
         var header = selection.append('div')
-            .attr('class', 'header');
+            .attr('class', 'header fillL');
+
+        header.append('button')
+            .attr('class', 'fr')
+            .append('span')
+            .attr('class', 'icon close')
+            .on('click', event.cancel);
 
         header.append('h3')
             .text(t('commit.title'));
diff --git a/js/id/ui/success.js b/js/id/ui/success.js
index 5e5c02e4e..b35306834 100644
--- a/js/id/ui/success.js
+++ b/js/id/ui/success.js
@@ -7,7 +7,13 @@ iD.ui.Success = function(context) {
             ' ' + context.connection().changesetURL(changeset.id);
 
         var header = selection.append('div')
-            .attr('class', 'header');
+            .attr('class', 'header fillL');
+
+        header.append('button')
+            .attr('class', 'fr')
+            .append('span')
+            .attr('class', 'icon close')
+            .on('click', event.cancel);
 
         header.append('h3')
             .text(t('just_edited'));