diff --git a/hw/net/imx_fec.c b/hw/net/imx_fec.c
index 77d27f763e..6cb9e2e20e 100644
--- a/hw/net/imx_fec.c
+++ b/hw/net/imx_fec.c
@@ -556,7 +556,7 @@ static void imx_enet_do_tx(IMXFECState *s, uint32_t index)
             }
             /* Last buffer in frame.  */
 
-            qemu_send_packet(qemu_get_queue(s->nic), s->frame, len);
+            qemu_send_packet(qemu_get_queue(s->nic), s->frame, frame_size);
             ptr = s->frame;
 
             frame_size = 0;