diff --git a/tests/unit/calendar/core.js b/tests/unit/calendar/core.js
index 92753748f..c35eff4eb 100644
--- a/tests/unit/calendar/core.js
+++ b/tests/unit/calendar/core.js
@@ -116,14 +116,14 @@ test( "Localization", function() {
 			);
 		};
 
-	Globalize.locale( "de-DE" );
+	Globalize.locale( "de" );
 	initCalendar();
 	testLocalization( "Init: " );
 	element.calendar( "destroy" );
 
 	Globalize.locale( defaultLocale.locale );
 	initCalendar();
-	Globalize.locale( "de-DE" );
+	Globalize.locale( "de" );
 	element.calendar( "refresh" );
 	testLocalization( "After init: " );
 
diff --git a/tests/unit/date/core.js b/tests/unit/date/core.js
index e6dc16dcf..d5895a91d 100644
--- a/tests/unit/date/core.js
+++ b/tests/unit/date/core.js
@@ -89,7 +89,7 @@ test( "List days of Week", 2, function() {
 		];
 
 	deepEqual( date.weekdays(), offset0, "Get weekdays with start of day on 0 (English)" );
-	Globalize.locale( "de-DE" );
+	Globalize.locale( "de" );
 	deepEqual( date.weekdays(), offset1, "Get weekdays with start of day on 1 (Germany)" );
 
 	// Revert Globalize changes back to English
@@ -119,7 +119,7 @@ test( "Days in Month", 3, function() {
 test( "Month Name", 2, function() {
 	var date = $.date();
 	equal( date.setMonth( 3 ).monthName(), "April", "Month name return April (English)" );
-	Globalize.locale( "de-DE" );
+	Globalize.locale( "de" );
 	equal( date.setMonth( 2 ).monthName(), "März", "Month name return March (German)" );
 	Globalize.locale( "en" );
 });