diff --git a/canvas.go b/canvas.go
index 356a3a2..7020658 100644
--- a/canvas.go
+++ b/canvas.go
@@ -79,17 +79,17 @@ func init_aplus_toolid(course_id int) error {
 	return errors.New("Could not find A+ link and tool ID")
 }
 
-func list_all_courses() {
+func list_all_courses(onlyreturn bool) []CanvasCourse {
 	all_courses := fmt.Sprintf("%s/courses?access_token=%s&enrollment_state=active&per_page=100", base_link, token)
 
 	canvas_courses := get_courses(token, all_courses, client)
 
 	if !onlyreturn {
-
 		for _, course := range canvas_courses {
 			fmt.Printf("%d, %s\n", course.ID%10000, course.Name)
 		}
 
+		return nil
 	}
 
 	return canvas_courses