diff --git a/src/rio.c b/src/rio.c
index 405e789e6..44f9b7a01 100644
--- a/src/rio.c
+++ b/src/rio.c
@@ -86,6 +86,7 @@ static size_t rioFileWrite(rio *r, const void *buf, size_t len) {
     if (r->io.file.autosync &&
         r->io.file.buffered >= r->io.file.autosync)
     {
+        fflush(r->io.file.fp);
         aof_fsync(fileno(r->io.file.fp));
         r->io.file.buffered = 0;
     }