diff --git a/block/raw-posix.c b/block/raw-posix.c
index 20b37a732c1b83f3a3993d463c1f92a2862951e8..5547fb526fa197315b4b267cbf2f0a5011d303e5 100644
--- a/block/raw-posix.c
+++ b/block/raw-posix.c
@@ -173,6 +173,10 @@ static int raw_open_common(BlockDriverState *bs, const char *filename,
 #ifdef CONFIG_LINUX_AIO
     if ((bdrv_flags & (BDRV_O_NOCACHE|BDRV_O_NATIVE_AIO)) ==
                       (BDRV_O_NOCACHE|BDRV_O_NATIVE_AIO)) {
+
+        /* We're falling back to POSIX AIO in some cases */
+        paio_init();
+
         s->aio_ctx = laio_init();
         if (!s->aio_ctx) {
             goto out_free_buf;