diff --git a/app/controllers/uploaded_files_controller.rb b/app/controllers/uploaded_files_controller.rb
index 3e6d0758..dcc7a769 100644
--- a/app/controllers/uploaded_files_controller.rb
+++ b/app/controllers/uploaded_files_controller.rb
@@ -64,7 +64,7 @@ def uploaded_file_params
     def validate_destroy_rights
       uploaded_file = UploadedFile.find(params[:id])
       @owner = current_user == @uploaded_file.author
-      @course_file_and_course_owner = (@uploaded_file.allowsUpload.class == Course) && (@uploaded_file.allowsUpload.creator_id == current_user.id)
+      course_file_and_course_owner = (uploaded_file.allowsUpload.class == Course) && (uploaded_file.allowsUpload.creator_id == current_user.id)
       lecture_file_and_lecture_owner = (uploaded_file.allowsUpload.class == Lecture) && (uploaded_file.allowsUpload.lecturer_id == current_user.id)
       unless owner || course_file_and_course_owner || lecture_file_and_lecture_owner
         redirect_to (uploaded_files_url), notice: "You can't delete this file."