diff --git a/src/sftp.c b/src/sftp.c
index cad6c005..6ff2a381 100644
--- a/src/sftp.c
+++ b/src/sftp.c
@@ -1626,12 +1626,13 @@ sftp_file sftp_open(sftp_session sftp, const char *file, int flags,
   attr.permissions = mode;
   attr.flags = SSH_FILEXFER_ATTR_PERMISSIONS;
 
-  if ((flags & O_RDONLY) == O_RDONLY)
-    sftp_flags |= SSH_FXF_READ;
-  if ((flags & O_WRONLY) == O_WRONLY)
-    sftp_flags |= SSH_FXF_WRITE;
-  if ((flags & O_RDWR) == O_RDWR)
+  if ((flags & O_RDWR) == O_RDWR) {
     sftp_flags |= (SSH_FXF_WRITE | SSH_FXF_READ);
+  } else if ((flags & O_WRONLY) == O_WRONLY) {
+    sftp_flags |= SSH_FXF_WRITE;
+  } else {
+    sftp_flags |= SSH_FXF_READ;
+  }
   if ((flags & O_CREAT) == O_CREAT)
     sftp_flags |= SSH_FXF_CREAT;
   if ((flags & O_TRUNC) == O_TRUNC)