diff --git a/packages/interface/src/components/complementary-area/index.js b/packages/interface/src/components/complementary-area/index.js
index b37b8b7da33d02..cb1a208add4da1 100644
--- a/packages/interface/src/components/complementary-area/index.js
+++ b/packages/interface/src/components/complementary-area/index.js
@@ -302,7 +302,7 @@ function ComplementaryArea( {
 					smallScreenTitle={ smallScreenTitle }
 					toggleButtonProps={ {
 						label: closeLabel,
-						size: 'small',
+						size: 'compact',
 						shortcut: toggleShortcut,
 						scope,
 						identifier,