diff --git a/tests/unit/progressbar/progressbar_core.js b/tests/unit/progressbar/progressbar_core.js
index 8f4a138ce..5b9aadc3d 100644
--- a/tests/unit/progressbar/progressbar_core.js
+++ b/tests/unit/progressbar/progressbar_core.js
@@ -1,3 +1,5 @@
+(function( $ ) {
+
 module( "progressbar: core" );
 
 test( "markup structure", function() {
@@ -51,3 +53,5 @@ test( "accessibility", function() {
 	equal( element.attr( "aria-valuemax" ), 150, "aria-valuemax" );
 	strictEqual( element.attr( "aria-valuenow" ), undefined, "aria-valuenow" );
 });
+
+}( jQuery ) );
diff --git a/tests/unit/progressbar/progressbar_events.js b/tests/unit/progressbar/progressbar_events.js
index 95effda75..ed3da169a 100644
--- a/tests/unit/progressbar/progressbar_events.js
+++ b/tests/unit/progressbar/progressbar_events.js
@@ -1,3 +1,5 @@
+(function( $ ) {
+
 module( "progressbar: events" );
 
 test( "create", function() {
@@ -49,3 +51,5 @@ test( "complete", function() {
 	value = 100;
 	element.progressbar( "value", value );
 });
+
+}( jQuery ) );
diff --git a/tests/unit/progressbar/progressbar_methods.js b/tests/unit/progressbar/progressbar_methods.js
index 004eacf90..4439b6078 100644
--- a/tests/unit/progressbar/progressbar_methods.js
+++ b/tests/unit/progressbar/progressbar_methods.js
@@ -1,3 +1,5 @@
+(function( $ ) {
+
 module( "progressbar: methods" );
 
 test( "destroy", function() {
@@ -33,3 +35,5 @@ test( "widget", function() {
 	equal( widgetElement.length, 1, "one element" );
 	strictEqual( widgetElement[ 0 ], element[ 0 ], "same element" );
 });
+
+}( jQuery ) );
diff --git a/tests/unit/progressbar/progressbar_options.js b/tests/unit/progressbar/progressbar_options.js
index bc0b5d00d..739c97bd9 100644
--- a/tests/unit/progressbar/progressbar_options.js
+++ b/tests/unit/progressbar/progressbar_options.js
@@ -1,3 +1,5 @@
+(function( $ ) {
+
 module( "progressbar: options" );
 
 test( "{ value: 0 }, default", function() {
@@ -70,3 +72,5 @@ test( "change max below value", function() {
 	equal( $( "#progressbar" ).progressbar( "value" ), 5,
 		"value constrained at max" );
 });
+
+}( jQuery ) );