diff --git a/report/completion/index.php b/report/completion/index.php
index 0a894af5eb4..85b73fa9474 100644
--- a/report/completion/index.php
+++ b/report/completion/index.php
@@ -67,9 +67,8 @@ $start   = optional_param('start', 0, PARAM_INT);
 $sifirst = optional_param('sifirst', 'all', PARAM_NOTAGS);
 $silast  = optional_param('silast', 'all', PARAM_NOTAGS);
 
-// Whether to show extra user identity information
-// TODO Does not support custom user profile fields (MDL-70456).
-$extrafields = \core_user\fields::get_identity_fields($context, false);
+// Whether to show extra user identity information.
+$extrafields = \core_user\fields::get_identity_fields($context, true);
 $leftcols = 1 + count($extrafields);
 
 // Check permissions
diff --git a/report/completion/tests/behat/completion_report.feature b/report/completion/tests/behat/completion_report.feature
index 0e73a80ed00..aca320683df 100644
--- a/report/completion/tests/behat/completion_report.feature
+++ b/report/completion/tests/behat/completion_report.feature
@@ -5,10 +5,13 @@ Feature: See the completion for items in a course
   I need to view completion report
 
   Background:
-    Given the following "users" exist:
-      | username | firstname | lastname    | email                | idnumber | middlename | alternatename | firstnamephonetic | lastnamephonetic |
-      | teacher1 | Teacher   | 1           | teacher1@example.com | t1       |            | fred          |                   |                  |
-      | student1 | Grainne   | Beauchamp   | student1@example.com | s1       | Ann        | Jill          | Gronya            | Beecham          |
+    Given the following "custom profile fields" exist:
+      | datatype | shortname | name  |
+      | text     | fruit     | Fruit |
+    And the following "users" exist:
+      | username | firstname | lastname  | email                | middlename | alternatename | firstnamephonetic | lastnamephonetic | profile_field_fruit |
+      | teacher1 | Teacher   | 1         | teacher1@example.com |            | fred          |                   |                  |                     |
+      | student1 | Grainne   | Beauchamp | student1@example.com | Ann        | Jill          | Gronya            | Beecham          | Kumquat             |
     And the following "courses" exist:
       | fullname | shortname | category | enablecompletion |
       | Course 1 | C1        | 0        | 1                |
@@ -19,14 +22,13 @@ Feature: See the completion for items in a course
     And the following "activities" exist:
       | activity | name       | intro      | course | idnumber | completion | completionview |
       | page     | PageName1  | PageDesc1  | C1     | PAGE1    | 1          | 1              |
-    And the following config values are set as admin:
-      | fullnamedisplay | firstname |
-      | alternativefullnameformat | middlename, alternatename, firstname, lastname |
 
   @javascript
-  Scenario: Go to the completion report
-    Given I log in as "teacher1"
-    And I am on "Course 1" course homepage
+  Scenario: The completion report respects user fullname setting
+    Given the following config values are set as admin:
+      | fullnamedisplay | firstname |
+      | alternativefullnameformat | middlename, alternatename, firstname, lastname |
+    And I am on the "C1" "Course" page logged in as "teacher1"
     And I navigate to "Course completion" in current page administration
     And I expand all fieldsets
     And I set the following fields to these values:
@@ -36,3 +38,21 @@ Feature: See the completion for items in a course
     When I navigate to "Reports" in current page administration
     And I click on "Course completion" "link" in the "region-main" "region"
     Then I should see "Ann, Jill, Grainne, Beauchamp"
+
+  @javascript
+  Scenario: The completion report displays custom user profile fields
+    Given the following config values are set as admin:
+      | showuseridentity | email,profile_field_fruit |
+    And I am on the "C1" "Course" page logged in as "teacher1"
+    And I navigate to "Course completion" in current page administration
+    And I expand all fieldsets
+    And I set the following fields to these values:
+      | Page - PageName1 | 1 |
+    And I press "Save changes"
+    And I am on "Course 1" course homepage
+    When I navigate to "Reports" in current page administration
+    And I click on "Course completion" "link" in the "region-main" "region"
+    # We can't refer to table headings by name because they aren't on the first row.
+    Then the following should exist in the "completionreport" table:
+      | -1-               | -2-                  | -3-     |
+      | Grainne Beauchamp | student1@example.com | Kumquat |