diff --git a/controllers/copy.php b/controllers/copy.php
index 8ae704301736d686b6286f39d42d0c87620489f0..e8624df3039112651de8fd9e8f3a0f6cc7a96dee 100755
--- a/controllers/copy.php
+++ b/controllers/copy.php
@@ -272,11 +272,19 @@ class CopyController extends PluginController
                             $oldtopfolder = Folder::findTopFolder($oldcourse->getId());
                             $newtopfolder = Folder::findTopFolder($newcourse->getId());
                             foreach ($oldtopfolder->file_refs as $fileref) {
-                                FileManager::copyFile(
-                                    $fileref->getFileType(),
-                                    $newtopfolder->getTypedFolder(),
-                                    User::findCurrent()
-                                );
+                                if (StudipVersion::newerThan("4.6")) {
+                                    FileManager::copyFile(
+                                        $fileref->getFileType(),
+                                        $newtopfolder->getTypedFolder(),
+                                        User::findCurrent()
+                                    );
+                                } else {
+                                    FileManager::copyFileRef(
+                                        $fileref,
+                                        $newtopfolder->getTypedFolder(),
+                                        User::findCurrent()
+                                    );
+                                }
                             }
                             foreach ($oldtopfolder->subfolders as $subfolder) {
                                 FileManager::copyFolder(
diff --git a/plugin.manifest b/plugin.manifest
index ed77a4349f41e0d35611497dfab45a6698e23b1c..1e1c32816e9499740c72913e87899a534c5a447f 100755
--- a/plugin.manifest
+++ b/plugin.manifest
@@ -1,6 +1,6 @@
 pluginname=CourseCopy
 pluginclassname=CourseCopy
-version=1.8.2
+version=1.8.3
 origin=data-quest
-studipMinVersion=4.6
+studipMinVersion=4.0
 studipMaxVersion=5.0.99