diff --git a/aio/src/styles/1-layouts/sidenav/_sidenav.scss b/aio/src/styles/1-layouts/sidenav/_sidenav.scss
index cb9731b240..43ddbbf329 100644
--- a/aio/src/styles/1-layouts/sidenav/_sidenav.scss
+++ b/aio/src/styles/1-layouts/sidenav/_sidenav.scss
@@ -14,7 +14,7 @@ mat-sidenav-container.sidenav-container {
 
   &.has-floating-toc {
     .mat-sidenav-content {
-      padding-right: 18vw;
+      margin-right: 18vw;
     }
   }