diff --git a/res/css/components/views/beacon/_LeftPanelLiveShareWarning.scss b/res/css/components/views/beacon/_LeftPanelLiveShareWarning.scss
index 04645c965e..de7dfa035c 100644
--- a/res/css/components/views/beacon/_LeftPanelLiveShareWarning.scss
+++ b/res/css/components/views/beacon/_LeftPanelLiveShareWarning.scss
@@ -15,7 +15,6 @@ limitations under the License.
 */
 
 .mx_LeftPanelLiveShareWarning {
-    @mixin ButtonResetDefault;
     width: 100%;
     box-sizing: border-box;