--- a/src/utils.cpp	Wed Aug 19 00:47:46 2009 -0700
+++ b/src/utils.cpp	Wed Aug 19 01:00:35 2009 -0700
@@ -233,6 +233,8 @@
 
   jsval val;
   if (JS_GetPendingException(context->cx, &val)) {
+    JS_ClearPendingException(context->cx);
+
     PyObject *pyStr = NULL;
     PyObject *tuple = NULL;
     PyObject *obj = PYM_jsvalToPyObject(context, val);

--- a/tests/test_pymonkey.py	Wed Aug 19 00:47:46 2009 -0700
+++ b/tests/test_pymonkey.py	Wed Aug 19 01:00:35 2009 -0700
@@ -451,6 +451,17 @@
                                         self.last_exception.args[0]),
                          'ReferenceError: hai2u is not defined')
 
+    def testThrowingObjWithBadToStringWorks(self):
+        self.assertRaises(
+            pymonkey.error,
+            self._evaljs,
+            "throw {toString: function() { throw 'dujg' }}"
+            )
+        self.assertEqual(
+            self.last_exception.args[1],
+            "<string conversion failed>"
+            )
+
     def testEvaluateTakesUnicodeCode(self):
         self.assertEqual(self._evaljs(u"'foo\u2026'"),
                          u"foo\u2026")