--- IO-AIO/AIO.xs	2010/12/02 10:04:47	1.176
+++ IO-AIO/AIO.xs	2010/12/30 07:19:31	1.177
@@ -355,6 +355,7 @@
         {
           sv_result = sv_result_cache; sv_result_cache = 0;
           SvIV_set (sv_result, req->result);
+          SvIOK_only (sv_result);
         }
       else
         {
@@ -528,7 +529,7 @@
             }
             break;
 
-          case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), su fudge result value */
+          case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
             if (req->result > 0)
               SvIV_set (sv_result, 0);
             /* FALLTHROUGH */