diff --git a/Lib/Cookie.py b/Lib/Cookie.py
index b2f7427..1ccfd16 100644
--- a/Lib/Cookie.py
+++ b/Lib/Cookie.py
@@ -477,7 +477,7 @@
         document.cookie = \"%s\";
         // end hiding -->
         </script>
-        """ % ( self.OutputString(attrs), )
+        """ % ( self.OutputString(attrs).replace('"',r'\"'), )
     # end js_output()
 
     def OutputString(self, attrs=None):
diff --git a/Lib/test/test_cookie.py b/Lib/test/test_cookie.py
index e7c0cf1..1cd538c 100644
--- a/Lib/test/test_cookie.py
+++ b/Lib/test/test_cookie.py
@@ -51,17 +51,17 @@
 
         self.assertEqual(C.output(['path']),
             'Set-Cookie: Customer="WILE_E_COYOTE"; Path=/acme')
-        self.assertEqual(C.js_output(), """
+        self.assertEqual(C.js_output(), r"""
         <script type="text/javascript">
         <!-- begin hiding
-        document.cookie = "Customer="WILE_E_COYOTE"; Path=/acme; Version=1";
+        document.cookie = "Customer=\"WILE_E_COYOTE\"; Path=/acme; Version=1";
         // end hiding -->
         </script>
         """)
-        self.assertEqual(C.js_output(['path']), """
+        self.assertEqual(C.js_output(['path']), r"""
         <script type="text/javascript">
         <!-- begin hiding
-        document.cookie = "Customer="WILE_E_COYOTE"; Path=/acme";
+        document.cookie = "Customer=\"WILE_E_COYOTE\"; Path=/acme";
         // end hiding -->
         </script>
         """)