diff --git a/PDP11/pdp11_rq.c b/PDP11/pdp11_rq.c
index f1625018..8d4accc0 100644
--- a/PDP11/pdp11_rq.c
+++ b/PDP11/pdp11_rq.c
@@ -1080,6 +1080,8 @@ MTAB rq_mod[] = {
       &rq_set_type, NULL, NULL, "Set RA80 Disk Type" },
     { MTAB_XTD|MTAB_VUN|MTAB_VALR, RA8U_DTYPE, NULL, "RAUSER=SizeInMB",
       &rq_set_type, NULL, NULL, "Set RAUSER Disk Type and its size" },
+    { MTAB_XTD|MTAB_VUN, RA8U_DTYPE, NULL, "RA8U",
+      &rq_set_type, NULL, NULL, NULL },
     { MTAB_XTD|MTAB_VUN, 0, "TYPE", NULL,
       NULL, &rq_show_type, NULL, "Display device type" },
     { MTAB_XTD|MTAB_VUN|MTAB_VALR, 0, "UNIT", "UNIT=val (0-65534)",