diff --git a/.changeset/chilled-files-unite.md b/.changeset/chilled-files-unite.md
new file mode 100644
index 000000000..e6e32ffbf
--- /dev/null
+++ b/.changeset/chilled-files-unite.md
@@ -0,0 +1,5 @@
+---
+"gitbook": patch
+---
+
+Fix corner radius of active section on "Line" sidebar style
diff --git a/packages/gitbook/src/components/PageAside/AsideSectionHighlight.tsx b/packages/gitbook/src/components/PageAside/AsideSectionHighlight.tsx
index f4e4ec80e..9fb0186cd 100644
--- a/packages/gitbook/src/components/PageAside/AsideSectionHighlight.tsx
+++ b/packages/gitbook/src/components/PageAside/AsideSectionHighlight.tsx
@@ -25,7 +25,7 @@ export const AsideSectionHighlight = React.memo(
                     'rounded-md',
                     'straight-corners:rounded-none',
                     'circular-corners:rounded-2xl',
-                    'sidebar-list-line:rounded-l-none',
+                    'sidebar-list-line:rounded-l-none!',
 
                     'sidebar-list-pill:bg-primary',
                     '[html.theme-muted.sidebar-list-pill_&]:bg-primary-hover',
diff --git a/packages/gitbook/src/components/PageAside/ScrollSectionsList.tsx b/packages/gitbook/src/components/PageAside/ScrollSectionsList.tsx
index 103082ce8..196ef3f28 100644
--- a/packages/gitbook/src/components/PageAside/ScrollSectionsList.tsx
+++ b/packages/gitbook/src/components/PageAside/ScrollSectionsList.tsx
@@ -95,7 +95,7 @@ export function ScrollSectionsList({ sections }: { sections: DocumentSection[] }
                             'rounded-md',
                             'straight-corners:rounded-none',
                             'circular-corners:rounded-2xl',
-                            'sidebar-list-line:rounded-l-none',
+                            'sidebar-list-line:rounded-l-none!',
 
                             'hover:bg-tint-hover',
                             'theme-gradient:hover:bg-tint-12/1',