diff --git a/res/css/_common.scss b/res/css/_common.scss
index ade69bc941..8f315c432f 100644
--- a/res/css/_common.scss
+++ b/res/css/_common.scss
@@ -739,9 +739,3 @@ legend {
     mask-repeat: no-repeat;
     mask-size: contain;
 }
-
-@define-mixin ListResetDefault {
-    list-style: none;
-    padding: 0;
-    margin: 0;
-}
diff --git a/res/css/components/views/beacon/_DialogSidebar.scss b/res/css/components/views/beacon/_DialogSidebar.scss
index 1989b57c30..af198bd903 100644
--- a/res/css/components/views/beacon/_DialogSidebar.scss
+++ b/res/css/components/views/beacon/_DialogSidebar.scss
@@ -53,7 +53,9 @@ limitations under the License.
 }
 
 .mx_DialogSidebar_list {
-    @mixin ListResetDefault;
+    list-style: none;
+    padding: 0;
+    margin: 0;
     flex: 1 1 0;
     width: 100%;
     overflow: auto;