diff --git a/src/cmwBuffer.hh b/src/cmwBuffer.hh
index 0109eaa..a3bbe4f 100644
--- a/src/cmwBuffer.hh
+++ b/src/cmwBuffer.hh
@@ -320,7 +320,7 @@ template<class R,class Z>class ReceiveBuffer{
   int giveFile (auto nm){
     int sz=give<::uint32_t>();
     checkLen(sz);
-    int fd=openWrapper(nm,O_CREAT|O_WRONLY|O_TRUNC|O_DIRECT|O_SYNC
+    int fd=openWrapper(nm,O_CREAT|O_WRONLY|O_TRUNC
 		       ,S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH);
     do{
       int r=::write(fd,rbuf+subTotal+rindex,sz);