diff --git a/lib/commons/aria/lookup-table.js b/lib/commons/aria/lookup-table.js
index c73997b5a7..f44ece642c 100644
--- a/lib/commons/aria/lookup-table.js
+++ b/lib/commons/aria/lookup-table.js
@@ -298,7 +298,7 @@ lookupTable.role = {
 	application: {
 		type: 'landmark',
 		attributes: {
-			allowed: ['aria-expanded', 'aria-errormessage']
+			allowed: ['aria-expanded', 'aria-errormessage', 'aria-activedescendant']
 		},
 		owned: null,
 		nameFrom: ['author'],
diff --git a/test/integration/rules/aria-allowed-attr/passes.html b/test/integration/rules/aria-allowed-attr/passes.html
index 3fafeeb538..675944a48b 100644
--- a/test/integration/rules/aria-allowed-attr/passes.html
+++ b/test/integration/rules/aria-allowed-attr/passes.html
@@ -58,6 +58,7 @@
 <div
 	role="application"
 	id="pass3"
+	aria-activedescendant="value"
 	aria-expanded="value"
 	aria-atomic="value"
 	aria-busy="value"