diff --git a/modules/services/improveOSM.js b/modules/services/improveOSM.js
index 5623a09db..6f7f47e03 100644
--- a/modules/services/improveOSM.js
+++ b/modules/services/improveOSM.js
@@ -360,17 +360,16 @@ export default {
                 payload.targetIds = [ d.identifier ];
             }
 
-            // Comments don't currently work, if they ever do in future
-            // it looks as though they require a separate post
-            // if (d.newComment !== undefined) {
-            //     payload.text = d.newComment;
-            // }
-
-            if (d.newStatus !== d.status) {
+            if (d.newStatus !== undefined) {
                 payload.status = d.newStatus;
                 payload.text = 'status changed';
             }
 
+            // Comment take place of default text
+            if (d.newComment !== undefined) {
+                payload.text = d.newComment;
+            }
+
             _erCache.inflightPost[d.id] = d3_request(url)
                 .header('Content-Type', 'application/json')
                 .post(JSON.stringify(payload), function(err) {
@@ -378,6 +377,8 @@ export default {
 
                     // Unsuccessful response status, keep issue open
                     if (err.status !== 200) { return callback(err, d); }
+                    // Just a comment, error still open
+                    if (d.newStatus === undefined) { return callback(err, d); }
 
                     that.removeError(d);
 
diff --git a/modules/ui/improveOSM_editor.js b/modules/ui/improveOSM_editor.js
index c1c29c1b5..b37107fe6 100644
--- a/modules/ui/improveOSM_editor.js
+++ b/modules/ui/improveOSM_editor.js
@@ -1,4 +1,5 @@
 import { dispatch as d3_dispatch } from 'd3-dispatch';
+import { select as d3_select } from 'd3-selection';
 
 import { t } from '../util/locale';
 import { services } from '../services';
@@ -12,7 +13,7 @@ import {
     uiTooltipHtml
 } from './index';
 
-import { utilRebind } from '../util';
+import { utilNoAuto, utilRebind } from '../util';
 
 
 export function uiImproveOsmEditor(context) {
@@ -97,10 +98,45 @@ export function uiImproveOsmEditor(context) {
             .append('div')
             .attr('class', 'keepRight-save save-section cf');
 
+        saveSectionEnter
+            .append('h4')
+            .attr('class', '.error-save-header')
+            .text(t('QA.keepRight.comment'));
+
+        saveSectionEnter
+            .append('textarea')
+            .attr('class', 'new-comment-input')
+            .attr('placeholder', t('QA.keepRight.comment_placeholder'))
+            .attr('maxlength', 1000)
+            .property('value', function(d) { return d.newComment; })
+            .call(utilNoAuto)
+            .on('input', changeInput)
+            .on('blur', changeInput);
+
         // update
         saveSection = saveSectionEnter
             .merge(saveSection)
             .call(errorSaveButtons);
+
+        function changeInput() {
+            var input = d3_select(this);
+            var val = input.property('value').trim();
+
+            if (val === '') {
+                val = undefined;
+            }
+
+            // store the unsaved comment with the error itself
+            _error = _error.update({ newComment: val });
+
+            var errorService = services.improveOSM;
+            if (errorService) {
+                errorService.replaceError(_error);
+            }
+
+            saveSection
+                .call(errorSaveButtons);
+        }
     }
 
     function errorSaveButtons(selection) {
@@ -117,11 +153,10 @@ export function uiImproveOsmEditor(context) {
             .append('div')
             .attr('class', 'buttons');
 
-        // Comments don't currently work
-        // buttonEnter
-        //     .append('button')
-        //     .attr('class', 'button comment-button action')
-        //     .text(t('QA.keepRight.save_comment'));
+        buttonEnter
+            .append('button')
+            .attr('class', 'button comment-button action')
+            .text(t('QA.keepRight.save_comment'));
 
         buttonEnter
             .append('button')
@@ -136,20 +171,19 @@ export function uiImproveOsmEditor(context) {
         buttonSection = buttonSection
             .merge(buttonEnter);
 
-        // Comments don't currently work
-        // buttonSection.select('.comment-button')
-        //     .attr('disabled', function(d) {
-        //         return d.newComment === undefined ? true : null;
-        //     })
-        //     .on('click.comment', function(d) {
-        //         this.blur();    // avoid keeping focus on the button - #4641
-        //         var errorService = services.improveOSM;
-        //         if (errorService) {
-        //             errorService.postUpdate(d, function(err, error) {
-        //                 dispatch.call('change', error);
-        //             });
-        //         }
-        //     });
+        buttonSection.select('.comment-button')
+            .attr('disabled', function(d) {
+                return d.newComment === undefined ? true : null;
+            })
+            .on('click.comment', function(d) {
+                this.blur();    // avoid keeping focus on the button - #4641
+                var errorService = services.improveOSM;
+                if (errorService) {
+                    errorService.postUpdate(d, function(err, error) {
+                        dispatch.call('change', error);
+                    });
+                }
+            });
 
         buttonSection.select('.close-button')
             .text(function(d) {
@@ -192,4 +226,4 @@ export function uiImproveOsmEditor(context) {
 
 
     return utilRebind(improveOsmEditor, dispatch, 'on');
-}
+}
\ No newline at end of file