@@ -3144,10 +3144,10 @@
         <Test>
           <Name>test_isinstance_cpy</Name>
           <Filename>%DLR_ROOT%\Languages\IronPython\Internal\ipy.bat</Filename>
-          <Arguments>test\test_isinstance.py</Arguments>
+          <Arguments>-X:MaxRecursion 1000 test\test_isinstance.py</Arguments>
           <MaxDuration>600000</MaxDuration>
           <LongRunning>false</LongRunning>
-          <Disabled>true</Disabled> <!-- FAILED -->
+          <Disabled>false</Disabled>
           <RequiresAdmin>false</RequiresAdmin>
           <NotParallelSafe>false</NotParallelSafe>
           <WorkingDirectory>%DLR_ROOT%\External.LCA_RESTRICTED\Languages\IronPython\27\Lib</WorkingDirectory>