diff --git a/Python/sysmodule.c b/Python/sysmodule.c
index 880385c..222630c 100644
--- a/Python/sysmodule.c
+++ b/Python/sysmodule.c
@@ -747,6 +747,10 @@
     PyStructSequence_SET_ITEM(version, pos++, PyLong_FromLong(ver.wSuiteMask));
     PyStructSequence_SET_ITEM(version, pos++, PyLong_FromLong(ver.wProductType));
 
+    if (PyErr_Occurred()) {
+        Py_DECREF(version);
+        return NULL;
+    }
     return version;
 }