diff --git a/public/react/src/modules/courses/members/CourseGroupChooser.js b/public/react/src/modules/courses/members/CourseGroupChooser.js
index 1a03c978f..ba9c64bb1 100644
--- a/public/react/src/modules/courses/members/CourseGroupChooser.js
+++ b/public/react/src/modules/courses/members/CourseGroupChooser.js
@@ -75,6 +75,7 @@ function CourseGroupChooser({ course_groups, isAdminOrCreator = true, item, inde
                 return(
                     <li key={item.id} value={item.id} >
                     <Checkbox value={item.id}
+															key={item.id}
                         id={`check${item.id}`}
                         style={{ marginRight: '6px' }}
                     ></Checkbox>