diff --git a/NEWS.md b/NEWS.md
index 3e3f620af2..eeefa08547 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,5 +1,7 @@
 # pkgdown (development version)
 
+* The mobile version of pkgdown sites no longer has a scrollburglar (a small amount of horizontal scroll) (#2179, @netique).
+
 # pkgdown 2.0.9
 
 * Fixes for regressions in 2.0.8:
diff --git a/inst/BS5/assets/pkgdown.scss b/inst/BS5/assets/pkgdown.scss
index 72adec0820..f362d35ddf 100644
--- a/inst/BS5/assets/pkgdown.scss
+++ b/inst/BS5/assets/pkgdown.scss
@@ -103,7 +103,8 @@ aside {
 
 // Add some visual distinction between content and "sidebar" on mobile
 @include media-breakpoint-down(sm) {
-  aside {
+  // Additional specificity needed to override bootstrap width on .row > *
+  .row > aside {
     margin: 0.5rem;
     width: calc(100vw - 1rem);
     background-color: $gray-100;