diff --git a/src/cmd/ksh93/bltins/print.c b/src/cmd/ksh93/bltins/print.c
index c00efc8..6c1d480 100644
--- a/src/cmd/ksh93/bltins/print.c
+++ b/src/cmd/ksh93/bltins/print.c
@@ -350,7 +350,7 @@ printv:
         if (pdata.nextarg == nullarg && pdata.argsize > 0) {
             sfwrite(outfile, stkptr(shp->stk, stktell(shp->stk)), pdata.argsize);
         }
-        if (sffileno(outfile) != sffileno(sfstderr)) sfsync(outfile);
+        if (!sflag && sffileno(outfile) != sffileno(sfstderr)) sfsync(outfile);
         sfpool(sfstderr, pool, SF_WRITE);
         exitval = pdata.err;
     } else if (vflag) {