diff -up ksh-20120801/src/cmd/ksh93/sh/io.c.sufix ksh-20120801/src/cmd/ksh93/sh/io.c
--- ksh-20120801/src/cmd/ksh93/sh/io.c.sufix 2014-04-08 14:30:14.412343555 +0200
+++ ksh-20120801/src/cmd/ksh93/sh/io.c 2014-04-08 14:31:18.403876587 +0200
@@ -2144,6 +2144,7 @@ static int io_prompt(Shell_t *shp,Sfio_t
}
#endif /* TIOCLBIC */
cp = sh_mactry(shp,nv_getval(sh_scoped(shp,PS1NOD)));
+ shp->exitval = 0;
for(;c= *cp;cp++)
{
if(c==HIST_CHAR)