diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2a830190d7..c0caa7959e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -17,6 +17,7 @@ and this project adheres to
   - ♿(frontend) improve ARIA in doc grid and editor for a11y #1519
   - ♿(frontend) improve accessibility and styling of summary table #1528
   - ♿(frontend) add focus trap and enter key support to remove doc modal #1531
+  - ♿(frontend) fix toggle panel button a11y with dynamic label and aria-… #1634
 - 🐛(frontend) preserve @ character when esc is pressed after typing it #1512
 - 🐛(frontend) make summary button fixed to remain visible during scroll #1581
 - 🐛(frontend) fix pdf embed to use full width #1526
diff --git a/src/frontend/apps/impress/src/features/header/components/ButtonTogglePanel.tsx b/src/frontend/apps/impress/src/features/header/components/ButtonTogglePanel.tsx
index c11fab0705..3ba96971ae 100644
--- a/src/frontend/apps/impress/src/features/header/components/ButtonTogglePanel.tsx
+++ b/src/frontend/apps/impress/src/features/header/components/ButtonTogglePanel.tsx
@@ -12,7 +12,10 @@ export const ButtonTogglePanel = () => {
     <Button
       size="medium"
       onClick={() => togglePanel()}
-      aria-label={t('Open the header menu')}
+      aria-label={t(
+        isPanelOpen ? 'Close the header menu' : 'Open the header menu',
+      )}
+      aria-expanded={isPanelOpen}
       color="tertiary-text"
       icon={
         <Icon