diff --git a/hw/ide/core.c b/hw/ide/core.c
index e93dd46..12b9c53 100644
--- a/hw/ide/core.c
+++ b/hw/ide/core.c
@@ -521,8 +521,7 @@
 
     /* launch next transfer */
     n = s->nsector;
-    if (s->is_read)
-        s->io_buffer_index = 0;
+    s->io_buffer_index = 0;
     s->io_buffer_size = n * 512;
     if (s->bus->dma->ops->prepare_buf(s->bus->dma, s->is_read) == 0)
         goto eot;