diff --git a/app/assets/stylesheets/common/base/sidebar.scss b/app/assets/stylesheets/common/base/sidebar.scss
index 91e0e31e8e9..855b3b98d32 100644
--- a/app/assets/stylesheets/common/base/sidebar.scss
+++ b/app/assets/stylesheets/common/base/sidebar.scss
@@ -370,7 +370,7 @@
   align-items: baseline;
   color: var(--d-sidebar-link-color);
   width: calc(
-    var(--d-sidebar-width) - 2 * var(--d-sidebar-row-horizontal-padding) + 2px
+    var(--d-sidebar-width) * var(--d-sidebar-row-horizontal-padding) + 2px
   );
 }