--- IO-AIO/AIO.xs	2008/09/30 17:03:53	1.129
+++ IO-AIO/AIO.xs	2008/10/02 11:35:03	1.130
@@ -672,7 +672,7 @@
                                                     : IoOFP (sv_2io (fh)));
           req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
           req->size = len;
-          req->sv2  = SvREFCNT_inc (data);
+          req->sv2  = SvREFCNT_inc_NN (data);
           req->ptr2 = (char *)svptr + dataoffset;
           req->stroffset = dataoffset;