diff --git a/fs/aio/aio_write.c b/fs/aio/aio_write.c
index 803bbdfa1c..829d1de019 100644
--- a/fs/aio/aio_write.c
+++ b/fs/aio/aio_write.c
@@ -246,6 +246,7 @@ int aio_write(FAR struct aiocb *aiocbp)
 {
   FAR struct aio_container_s *aioc;
   int ret;
+  int flags;
 
   DEBUGASSERT(aiocbp);
 
@@ -276,8 +277,8 @@ int aio_write(FAR struct aiocb *aiocbp)
    * the EBADF error code
    */
 
-  int flags = fcntl(aiocbp->aio_fildes, F_GETFL);
-  if (!(flags & O_WRONLY))
+  flags = fcntl(aiocbp->aio_fildes, F_GETFL);
+  if ((flags & O_WRONLY) == 0)
     {
       aiocbp->aio_result = -EBADF;
       return OK;