diff --git a/ui/jquery.ui.core.js b/ui/jquery.ui.core.js
index 5d8a9935c74..2886343764e 100644
--- a/ui/jquery.ui.core.js
+++ b/ui/jquery.ui.core.js
@@ -230,6 +230,19 @@ if ( !$( "<a>" ).outerWidth( 1 ).jquery ) {
 	});
 }
 
+// support: jQuery 1.6.1, 1.6.2 (http://bugs.jquery.com/ticket/9413)
+if ( $( "<a>" ).data( "a-b", "a" ).removeData( "a-b" ).data( "a-b" ) ) {
+	$.fn.removeData = (function( removeData ) {
+		return function( key ) {
+			if ( arguments.length ) {
+				return removeData.call( this, $.camelCase( key ) );
+			} else {
+				return removeData.call( this );
+			}
+		};
+	})( $.fn.removeData );
+}
+