diff --git a/Python/getargs.c b/Python/getargs.c
index b0715ba..9637618 100644
--- a/Python/getargs.c
+++ b/Python/getargs.c
@@ -1162,9 +1162,7 @@
 			return converterr(
 				"invalid use of 't' format character", 
 				arg, msgbuf, bufsize);
-		if (!PyType_HasFeature(arg->ob_type,
-				       Py_TPFLAGS_HAVE_GETCHARBUFFER) ||
-		    pb == NULL || pb->bf_getcharbuffer == NULL ||
+		if (pb == NULL || pb->bf_getcharbuffer == NULL ||
 		    pb->bf_getsegcount == NULL)
 			return converterr(
 				"string or read-only character buffer",