--- a/sys/dev/raid/ciss/ciss.c
+++ b/sys/dev/raid/ciss/ciss.c
@@ -3321,9 +3321,10 @@
 	cl = &sc->ciss_logical[bus][target];
 
 	padstr(inq->vendor, "COMPAQ", 8);
 	padstr(inq->product, ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance), 8);
-	padstr(inq->revision, ciss_name_ldrive_status(cl->cl_lstatus->status), 16);
+	padstr(inq->revision, ciss_name_ldrive_status(cl->cl_lstatus->status),
+	    sizeof(inq->revision));
     }
 }