diff --git a/tests/test_cursor.py b/tests/test_cursor.py
index fc389e1a..1ebe9d05 100755
--- a/tests/test_cursor.py
+++ b/tests/test_cursor.py
@@ -465,6 +465,11 @@ class CursorTests(ConnectingTestCase):
             self.assertRaises(exception, cur.callproc, procname, parameter_sequence)
             self.conn.rollback()
 
+    def test_callproc_badparam(self):
+        cur = self.conn.cursor()
+        self.assertRaises(TypeError, cur.callproc, 'lower', 42)
+
+
 def test_suite():
     return unittest.TestLoader().loadTestsFromName(__name__)