initthread(): Removed extraneous Py_INCREF(ThreadError)
diff --git a/Modules/threadmodule.c b/Modules/threadmodule.c
index 01d8305..461953e 100644
--- a/Modules/threadmodule.c
+++ b/Modules/threadmodule.c
@@ -321,7 +321,6 @@
 	/* Add a symbolic constant */
 	d = PyModule_GetDict(m);
 	ThreadError = PyString_FromString("thread.error");
-	Py_INCREF(ThreadError);
 	PyDict_SetItemString(d, "error", ThreadError);
 
 	/* Check for errors */