diff --git a/css/themes/default/jquery.mobile.theme.css b/css/themes/default/jquery.mobile.theme.css
index af19668d..1e5c43e5 100644
--- a/css/themes/default/jquery.mobile.theme.css
+++ b/css/themes/default/jquery.mobile.theme.css
@@ -44,7 +44,7 @@
     color: #2489CE /*{a-bar-link-visited}*/;
 }
 .ui-body-a,
-.ui-dialog.ui-overlay-a {
+.ui-dialog-page.ui-overlay-a {
 	border: 1px solid 		#2A2A2A /*{a-body-border}*/;
 	background: 			#222222 /*{a-body-background-color}*/;
 	color: 					#fff /*{a-body-color}*/;
@@ -184,7 +184,7 @@
     color: #ddf0f8 /*{b-bar-link-visited}*/;
 }
 .ui-body-b,
-.ui-dialog.ui-overlay-b {
+.ui-dialog-page.ui-overlay-b {
 	border: 1px solid 		#C6C6C6 /*{b-body-border}*/;
 	background: 			#cccccc /*{b-body-background-color}*/;
 	color: 					#333333 /*{b-body-color}*/;
@@ -326,7 +326,7 @@
 	font-family: Helvetica, Arial, sans-serif /*{global-font-family}*/;
 }
 .ui-body-c,
-.ui-dialog.ui-overlay-c {
+.ui-dialog-page.ui-overlay-c {
 	border: 1px solid 		#B3B3B3 /*{c-body-border}*/;
 	color: 					#333333 /*{c-body-color}*/;
 	text-shadow: 0 /*{c-body-shadow-x}*/ 1px /*{c-body-shadow-y}*/ 0 /*{c-body-shadow-radius}*/ #fff /*{c-body-shadow-color}*/;
@@ -468,7 +468,7 @@
 }
 
 .ui-body-d,
-.ui-dialog.ui-overlay-d {
+.ui-dialog-page.ui-overlay-d {
 	border: 1px solid 		#ccc /*{d-body-border}*/;
 	color: 					#333333 /*{d-body-color}*/;
 	text-shadow: 0 /*{d-body-shadow-x}*/ 1px /*{d-body-shadow-y}*/ 0 /*{d-body-shadow-radius}*/ 	#fff /*{d-body-shadow-color}*/;
@@ -609,7 +609,7 @@
 }
 
 .ui-body-e,
-.ui-dialog.ui-overlay-e {
+.ui-dialog-page.ui-overlay-e {
 	border: 1px solid 		#F7C942 /*{e-body-border}*/;
 	color: 					#333333 /*{e-body-color}*/;
 	text-shadow: 0 /*{e-body-shadow-x}*/ 1px /*{e-body-shadow-y}*/ 0 /*{e-body-shadow-radius}*/ 	#fff /*{e-body-shadow-color}*/;
diff --git a/js/jquery.mobile.dialog.js b/js/jquery.mobile.dialog.js
index 206ea77a..c6479fe4 100644
--- a/js/jquery.mobile.dialog.js
+++ b/js/jquery.mobile.dialog.js
@@ -19,7 +19,7 @@ $.widget( "mobile.dialog", $.mobile.widget, {
 					"class" : "ui-dialog ui-corner-all ui-overlay-shadow"
 				});
 
-		$el.addClass( "ui-overlay-" + this.options.overlayTheme );
+		$el.addClass( "ui-dialog-page ui-overlay-" + this.options.overlayTheme );
 		
 		// Class the markup for dialog styling
 		// Set aria role
diff --git a/tests/unit/dialog/dialog_events.js b/tests/unit/dialog/dialog_events.js
index fb80fa2f..cb3ca80d 100644
--- a/tests/unit/dialog/dialog_events.js
+++ b/tests/unit/dialog/dialog_events.js
@@ -28,7 +28,7 @@
 				ok( /&ui-state=dialog/.test(location.hash), "ui-state=dialog =~ location.hash", "dialog open" );
 
 				// close the dialog
-				$( ".ui-dialog" ).dialog( "close" );
+				$( ".ui-dialog-page" ).dialog( "close" );
 			},
 
 			function() {
diff --git a/tests/unit/navigation/navigation_core.js b/tests/unit/navigation/navigation_core.js
index 7d61bcff..1a1b195b 100644
--- a/tests/unit/navigation/navigation_core.js
+++ b/tests/unit/navigation/navigation_core.js
@@ -1062,7 +1062,7 @@
 			},
 
 			function() {
-				ok( $.mobile.activePage.is(".ui-dialog"), "prefetched page is rendered as a dialog" );
+				ok( $.mobile.activePage.is(".ui-dialog-page"), "prefetched page is rendered as a dialog" );
         start();
 			}
 		]);