diff --git a/hw/scsi/megasas.c b/hw/scsi/megasas.c
index 7401b6b..acc9d30 100644
--- a/hw/scsi/megasas.c
+++ b/hw/scsi/megasas.c
@@ -1118,7 +1118,7 @@
     BusChild *kid;
 
     memset(&info, 0, dcmd_size);
-    if (cmd->iov_size < dcmd_size) {
+    if (cmd->iov_size > dcmd_size) {
         trace_megasas_dcmd_invalid_xfer_len(cmd->index, cmd->iov_size,
                                             dcmd_size);
         return MFI_STAT_INVALID_PARAMETER;