diff --git a/packages/docusaurus-theme-classic/src/theme/Navbar/index.js b/packages/docusaurus-theme-classic/src/theme/Navbar/index.js
index f6965ee7fa..dc4724dd7a 100644
--- a/packages/docusaurus-theme-classic/src/theme/Navbar/index.js
+++ b/packages/docusaurus-theme-classic/src/theme/Navbar/index.js
@@ -58,6 +58,7 @@ function Navbar() {
       <div className="navbar__inner">
         <div className="navbar__items">
           <div
+            aria-label="Navigation bar toggle"
             className="navbar__toggle"
             role="button"
             tabIndex={0}