diff --git a/CourseCopy.class.php b/CourseCopy.class.php
index aab4a417ccff1473747265d1f0fa98750289044b..f99b0f324775224adeaa7826c554e56281d8cb7d 100755
--- a/CourseCopy.class.php
+++ b/CourseCopy.class.php
@@ -14,7 +14,7 @@ class CourseCopy extends StudIPPlugin implements AdminCourseAction
         return \Studip\Button::createAccept(
             dgettext('CourseCopy', 'Kopieren'),
             'edit',
-            ['data-dialog' => 1]
+            ['data-dialog' => 1, 'formaction' => $this->getAdminActionURL()]
         );
     }