diff --git a/enrol/locallib.php b/enrol/locallib.php
index 182cff3a847..ea3d8e85509 100644
--- a/enrol/locallib.php
+++ b/enrol/locallib.php
@@ -172,7 +172,11 @@ class course_enrolment_manager {
                            FROM {user} u
                            JOIN {user_enrolments} ue ON (ue.userid = u.id  AND ue.enrolid $instancessql)
                            JOIN {enrol} e ON (e.id = ue.enrolid)
-                      LEFT JOIN {groups_members} gm ON u.id = gm.userid
+                      LEFT JOIN {groups_members} gm ON u.id = gm.userid AND gm.groupid IN (
+                               SELECT g.id
+                                 FROM {groups} g
+                                WHERE g.courseid = e.courseid
+                              )
                           WHERE $filtersql";
             $this->totalusers = (int)$DB->count_records_sql($sqltotal, $params);
         }
diff --git a/enrol/tests/behat/filter_enrolled_users.feature b/enrol/tests/behat/filter_enrolled_users.feature
index d8075074b58..d2843056710 100644
--- a/enrol/tests/behat/filter_enrolled_users.feature
+++ b/enrol/tests/behat/filter_enrolled_users.feature
@@ -50,11 +50,12 @@ Feature: Enrolled users can be filtered by group
     And I should see "<expected3>"
     And I should not see "<notexpected1>"
     And I should not see "<notexpected2>"
+    And I should see "<expected4>"
 
     # Note the 'XX-IGNORE-XX' elements are for when there is less than 2 'not expected' items.
     Examples:
-      | group            | expected1 | expected2 | expected3 | notexpected1 | notexpected2 |
-      | All participants | Student 1 | Student 2 | Student 3 | XX-IGNORE-XX | XX-IGNORE-XX |
-      | No group         | Student 1 |           |           | Student 2    | Student 3    |
-      | Group 1          | Student 2 |           |           | Student 1    | Student 3    |
-      | Group 2          | Student 2 | Student 3 |           | Student 1    | XX-IGNORE-XX |
+      | group            | expected1 | expected2 | expected3 | expected4        | notexpected1 | notexpected2 |
+      | All participants | Student 1 | Student 2 | Student 3 | 4 enrolled users | XX-IGNORE-XX | XX-IGNORE-XX |
+      | No group         | Student 1 |           |           | 2 enrolled users | Student 2    | Student 3    |
+      | Group 1          | Student 2 |           |           | 1 enrolled users | Student 1    | Student 3    |
+      | Group 2          | Student 2 | Student 3 |           | 2 enrolled users | Student 1    | XX-IGNORE-XX |