diff --git a/src/wp-admin/js/editor-expand.js b/src/wp-admin/js/editor-expand.js
index af771c9ac7..cbe910de75 100644
--- a/src/wp-admin/js/editor-expand.js
+++ b/src/wp-admin/js/editor-expand.js
@@ -880,7 +880,7 @@
 				return;
 			}
 
-			if ( event && ( event.metaKey || ( event.ctrlKey && ! event.altKey ) || ( key && (
+			if ( event && ( event.metaKey || ( event.ctrlKey && ! event.altKey ) || ( event.altKey && event.shiftKey ) || ( key && (
 				// Special keys ( tab, ctrl, alt, esc, arrow keys... )
 				( key <= 47 && key !== 8 && key !== 13 && key !== 32 && key !== 46 ) ||
 				// Windows keys