diff --git a/comment/lib.php b/comment/lib.php
index c158c97800c..ef1e619cd80 100644
--- a/comment/lib.php
+++ b/comment/lib.php
@@ -685,7 +685,7 @@ class comment {
         global $DB;
         $contexts = array();
         $contexts[] = $context->id;
-        $children = get_child_contexts($context);
+        $children = $context->get_child_contexts();
         foreach ($children as $c) {
             $contexts[] = $c->id;
         }
diff --git a/lib/accesslib.php b/lib/accesslib.php
index 66975330a94..221f1b336c1 100644
--- a/lib/accesslib.php
+++ b/lib/accesslib.php
@@ -7230,27 +7230,6 @@ class context_block extends context {
 // before removing devs will be warned with a debugging message first,
 // then we will add error message and only after that we can remove the functions
 // completely.
-/**
- * Recursive function which, given a context, find all its children context ids.
- *
- * For course category contexts it will return immediate children only categories and courses.
- * It will NOT recurse into courses or child categories.
- * If you want to do that, call it on the returned courses/categories.
- *
- * When called for a course context, it will return the modules and blocks
- * displayed in the course page.
- *
- * If called on a user/course/module context it _will_ populate the cache with the appropriate
- * contexts ;-)
- *
- * @deprecated since 2.2, use $context->get_child_contexts() instead
- * @param context $context
- * @return array Array of child records
- */
-function get_child_contexts(context $context) {
-    return $context->get_child_contexts();
-}
-
 /**
  * Precreates all contexts including all parents
  *
diff --git a/lib/deprecatedlib.php b/lib/deprecatedlib.php
index c4d3191b342..5555d400840 100644
--- a/lib/deprecatedlib.php
+++ b/lib/deprecatedlib.php
@@ -4963,3 +4963,26 @@ function get_parent_contextid(context $context) {
         return false;
     }
 }
+
+/**
+ * Recursive function which, given a context, find all its children contexts.
+ *
+ * For course category contexts it will return immediate children only categories and courses.
+ * It will NOT recurse into courses or child categories.
+ * If you want to do that, call it on the returned courses/categories.
+ *
+ * When called for a course context, it will return the modules and blocks
+ * displayed in the course page.
+ *
+ * If called on a user/course/module context it _will_ populate the cache with the appropriate
+ * contexts ;-)
+ *
+ * @see context::get_child_contexts()
+ * @deprecated since 2.2
+ * @param context $context
+ * @return array Array of child records
+ */
+function get_child_contexts(context $context) {
+    debugging('get_child_contexts() is deprecated, please use $context->get_child_contexts() instead.', DEBUG_DEVELOPER);
+    return $context->get_child_contexts();
+}
diff --git a/lib/moodlelib.php b/lib/moodlelib.php
index 0767ee63f23..593c964f296 100644
--- a/lib/moodlelib.php
+++ b/lib/moodlelib.php
@@ -5230,7 +5230,7 @@ function reset_course_userdata($data) {
     $componentstr = get_string('roles');
 
     if (!empty($data->reset_roles_overrides)) {
-        $children = get_child_contexts($context);
+        $children = $context->get_child_contexts();
         foreach ($children as $child) {
             $DB->delete_records('role_capabilities', array('contextid'=>$child->id));
         }
@@ -5241,7 +5241,7 @@ function reset_course_userdata($data) {
     }
 
     if (!empty($data->reset_roles_local)) {
-        $children = get_child_contexts($context);
+        $children = $context->get_child_contexts();
         foreach ($children as $child) {
             role_unassign_all(array('contextid'=>$child->id));
         }
diff --git a/lib/tests/accesslib_test.php b/lib/tests/accesslib_test.php
index cd4d8f5590e..261e2a1a082 100644
--- a/lib/tests/accesslib_test.php
+++ b/lib/tests/accesslib_test.php
@@ -2363,8 +2363,10 @@ class accesslib_testcase extends advanced_testcase {
         }
 
         $children = get_child_contexts($systemcontext);
-        $this->resetDebugging();
+        // Using assertEquals here as assertSame fails for some reason...
+        $this->assertEquals($children, $systemcontext->get_child_contexts());
         $this->assertEquals(count($children), $DB->count_records('context')-1);
+        $this->resetDebugging();
         unset($children);
 
         // Make sure a debugging is thrown.
@@ -2378,6 +2380,8 @@ class accesslib_testcase extends advanced_testcase {
         $this->assertDebuggingCalled('get_parent_contexts() is deprecated, please use $context->get_parent_context_ids() instead.', DEBUG_DEVELOPER);
         get_parent_contextid($context);
         $this->assertDebuggingCalled('get_parent_contextid() is deprecated, please use $context->get_parent_context() instead.', DEBUG_DEVELOPER);
+        get_child_contexts($frontpagecontext);
+        $this->assertDebuggingCalled('get_child_contexts() is deprecated, please use $context->get_child_contexts() instead.', DEBUG_DEVELOPER);
 
         $DB->delete_records('context', array('contextlevel'=>CONTEXT_BLOCK));
         create_contexts();
diff --git a/lib/upgrade.txt b/lib/upgrade.txt
index d4f755cfab3..d3040b533bc 100644
--- a/lib/upgrade.txt
+++ b/lib/upgrade.txt
@@ -11,6 +11,7 @@ information provided here is intended especially for developers.
 * get_system_context() is deprecated, please use context_system::instance().
 * get_parent_contexts() is deprecated, please use $context->get_parent_context_ids().
 * get_parent_contextid() is deprecated, please use $context->get_parent_context().
+* get_child_contexts() is deprecated, please use $context->get_child_contexts().
 * Use new function moodleform::mock_submit() to simulate form submission in unit tests (backported).
 
 === 2.5.1 ===