diff --git a/PDP11/pdp11_dz.c b/PDP11/pdp11_dz.c
index 602526d3..ca22c466 100644
--- a/PDP11/pdp11_dz.c
+++ b/PDP11/pdp11_dz.c
@@ -336,7 +336,7 @@ MTAB dz_mod[] = {
         NULL, &tmxr_show_cstat, (void *) &dz_desc, "Display current connections" },
     { MTAB_XTD|MTAB_VDV|MTAB_NMO, 0, "STATISTICS", NULL,
         NULL, &tmxr_show_cstat, (void *) &dz_desc, "Display multiplexer statistics" },
-    { MTAB_XTD|MTAB_VDV|MTAB_VALR, 020, "ADDRESS", "ADDRESS",
+    { MTAB_XTD|MTAB_VDV|MTAB_VALR, 010, "ADDRESS", "ADDRESS",
         &set_addr, &show_addr, NULL, "Bus address" },
     { MTAB_XTD|MTAB_VDV|MTAB_VALR, DZ_LINES, "VECTOR", "VECTOR",
         &set_vec, &show_vec_mux, (void *) &dz_desc, "Interrupt vector" },