diff --git a/tests/unit/dialog/core.js b/tests/unit/dialog/core.js
index 4ebbf78086..5b63227e01 100644
--- a/tests/unit/dialog/core.js
+++ b/tests/unit/dialog/core.js
@@ -87,20 +87,20 @@ QUnit.test( "ARIA", function( assert ) {
 QUnit.test( "aria-modal", function( assert ) {
 	assert.expect( 3 );
 
-	var element = $( "<div>" ).dialog(),
-		wrapper = element.dialog( "option", "modal", true  );
-		assert.equal( wrapper.attr( "aria-modal" ), "true", "aria-modal attribute set to true" );
+	var element = $( "<div>" ).dialog( "option", "modal", true ),
+		wrapper = element.dialog( "widget" );
+	assert.equal( wrapper.attr( "aria-modal" ), "true", "aria-modal attribute set to true" );
 	element.remove();
 
-	var element = $( "<div>" ).dialog(),
-		wrapper = element.dialog( "option", "modal", false );
-		assert.equal( wrapper.attr( "aria-modal" ), "false", "aria-modal attribute set to false" );
+	var element = $( "<div>" ).dialog( "option", "modal", false ),
+		wrapper = element.dialog( "widget" );
+	assert.equal( wrapper.attr( "aria-modal" ), "false", "aria-modal attribute set to false" );
 	element.remove();
 
-	var element = $( "<div>" ).dialog();
-		assert.equal( element.dialog( "widget" ).attr( "aria-describedby" ), null, "no aria-modal attribute added" );
+	var element = $( "<div>" ).dialog( "option", "modal", null ),
+		wrapper = element.dialog( "widget" );
+	assert.equal( wrapper.attr( "aria-modal" ), null, "no aria-modal attribute added" );
 	element.remove();
-
 } );