diff --git a/packages/docusaurus-theme-classic/src/theme/NavbarItem/DefaultNavbarItem.tsx b/packages/docusaurus-theme-classic/src/theme/NavbarItem/DefaultNavbarItem.tsx
index 02e128fff14a..74c9c9de0e2b 100644
--- a/packages/docusaurus-theme-classic/src/theme/NavbarItem/DefaultNavbarItem.tsx
+++ b/packages/docusaurus-theme-classic/src/theme/NavbarItem/DefaultNavbarItem.tsx
@@ -192,7 +192,8 @@ function NavItemMobile({
         role="button"
         className={navLinkClassNames(className, true)}
         {...props}
-        onClick={() => {
+        onClick={(e) => {
+          e.preventDefault();
           setCollapsed((state) => !state);
         }}>
         {props.children ?? props.label}