diff --git a/packages/docusaurus-theme-classic/src/theme/DocPage/index.tsx b/packages/docusaurus-theme-classic/src/theme/DocPage/index.tsx
index 5ab7bcd93d..bff6aaaf7c 100644
--- a/packages/docusaurus-theme-classic/src/theme/DocPage/index.tsx
+++ b/packages/docusaurus-theme-classic/src/theme/DocPage/index.tsx
@@ -99,7 +99,7 @@ function DocPageContent({
                 role="button"
                 onKeyDown={toggleSidebar}
                 onClick={toggleSidebar}>
-                <IconArrow />
+                <IconArrow aria-label="Expand sidebar" />
               </div>
             )}
           </div>
diff --git a/packages/docusaurus-theme-classic/src/theme/DocSidebar/index.tsx b/packages/docusaurus-theme-classic/src/theme/DocSidebar/index.tsx
index f2f0f5a783..d834ec21ff 100644
--- a/packages/docusaurus-theme-classic/src/theme/DocSidebar/index.tsx
+++ b/packages/docusaurus-theme-classic/src/theme/DocSidebar/index.tsx
@@ -277,7 +277,10 @@ function DocSidebar({
             styles.collapseSidebarButton,
           )}
           onClick={onCollapse}>
-          <IconArrow className={styles.collapseSidebarButtonIcon} />
+          <IconArrow
+            className={styles.collapseSidebarButtonIcon}
+            aria-label="Collapse sidebar"
+          />
         </button>
       )}
     </div>