diff --git a/drivers/misc/rpmsgblk.c b/drivers/misc/rpmsgblk.c
index ef2c438d5e..4a4214fd81 100644
--- a/drivers/misc/rpmsgblk.c
+++ b/drivers/misc/rpmsgblk.c
@@ -613,7 +613,7 @@ static int rpmsgblk_mmc_multi_cmd_ioctl(FAR struct inode *inode,
 
   msglen = sizeof(*msg) + arglen - 1;
   rsplen += sizeof(*msg) - 1;
-  if (MAX(msglen, rsplen) > rpmsg_virtio_get_buffer_size(priv->ept.rdev))
+  if (MAX(msglen, rsplen) > rpmsg_get_tx_buffer_size(priv->ept.rdev))
     {
       int ret = 0;