diff --git a/course/lib.php b/course/lib.php
index 97175cfd5a1..d774e69baa2 100644
--- a/course/lib.php
+++ b/course/lib.php
@@ -2038,24 +2038,4 @@ function move_courses ($courseids, $categoryid) {
     return true;
 }
 
-function course_parent_visible($course = null) {
-    return category_parent_visible($course->category);
-}
-
-function category_parent_visible($parent = 0) {
-    if (!$parent) {
-        return true;
-    }
-    $category = get_record('course_categories', 'id', $parent);
-    $list = explode('/', preg_replace('/^\/(.*)$/', '$1', $category->path));
-    $list[] = $parent;
-    $parents = get_records_list('course_categories', 'id', implode(',', $list), 'depth DESC');
-    foreach ($parents as $parent) {
-        if (!$parent->visible) {
-            return false;
-        }
-    }
-    return true;
-}
-
 ?>
diff --git a/lib/datalib.php b/lib/datalib.php
index 2e30c47ea34..13b3f9ec50c 100644
--- a/lib/datalib.php
+++ b/lib/datalib.php
@@ -3060,5 +3060,25 @@ function check_db_compat() {
     return true;
 }
 
+function course_parent_visible($course = null) {
+    return category_parent_visible($course->category);
+}
+
+function category_parent_visible($parent = 0) {
+    if (!$parent) {
+        return true;
+    }
+    $category = get_record('course_categories', 'id', $parent);
+    $list = explode('/', preg_replace('/^\/(.*)$/', '$1', $category->path));
+    $list[] = $parent;
+    $parents = get_records_list('course_categories', 'id', implode(',', $list), 'depth DESC');
+    foreach ($parents as $parent) {
+        if (!$parent->visible) {
+            return false;
+        }
+    }
+    return true;
+}
+
 // vim:autoindent:expandtab:shiftwidth=4:tabstop=4:tw=140:
 ?>