diff --git a/PDP11/pdp11_kmc.c b/PDP11/pdp11_kmc.c
index 5ac231d6..e3ce408b 100644
--- a/PDP11/pdp11_kmc.c
+++ b/PDP11/pdp11_kmc.c
@@ -607,7 +607,7 @@ static REG kmc_reg[] = {
     };
 
 MTAB kmc_mod[] = {
-    { MTAB_XTD|MTAB_VDV, 010, "ADDRESS", "ADDRESS",
+    { MTAB_XTD|MTAB_VDV|MTAB_VALR, 010, "ADDRESS", "ADDRESS",
         &set_addr, &show_addr, NULL, "Bus address" },
     { MTAB_XTD|MTAB_VDV|MTAB_VALR, 0, "VECTOR", "VECTOR",
         &set_vec, &show_vec, NULL, "Interrupt vector" },
diff --git a/PDP11/pdp11_pclk.c b/PDP11/pdp11_pclk.c
index 3ab570b0..ee925b86 100644
--- a/PDP11/pdp11_pclk.c
+++ b/PDP11/pdp11_pclk.c
@@ -223,7 +223,7 @@ MTAB pclk_mod[] = {
     { MTAB_XTD|MTAB_VDV,         0, "FREQUENCY",            NULL,   NULL, &pclk_show_freq, NULL },
     { MTAB_XTD|MTAB_VDV, 0, "ADDRESS", NULL,
       NULL, &show_addr, NULL },
-    { MTAB_XTD|MTAB_VDV, 0, "VECTOR", "VECTOR",
+    { MTAB_XTD|MTAB_VDV|MTAB_VALR, 0, "VECTOR", "VECTOR",
       &set_vec, &show_vec, NULL },
     { 0 }
     };
diff --git a/PDP11/pdp11_rh.c b/PDP11/pdp11_rh.c
index f4252729..95a7b903 100644
--- a/PDP11/pdp11_rh.c
+++ b/PDP11/pdp11_rh.c
@@ -226,9 +226,9 @@ REG mba0_reg[] = {
     };
 
 MTAB mba0_mod[] = {
-    { MTAB_XTD|MTAB_VDV, 0100, "ADDRESS", "ADDRESS",
+    { MTAB_XTD|MTAB_VDV|MTAB_VALR, 0100, "ADDRESS", "ADDRESS",
       &set_addr, &show_addr, NULL },
-    { MTAB_XTD|MTAB_VDV, 0, "VECTOR", "VECTOR",
+    { MTAB_XTD|MTAB_VDV|MTAB_VALR, 0, "VECTOR", "VECTOR",
       &set_vec, &show_vec, NULL },
     { 0 }
     };
@@ -259,9 +259,9 @@ REG mba1_reg[] = {
     };
 
 MTAB mba1_mod[] = {
-    { MTAB_XTD|MTAB_VDV, 0040, "ADDRESS", "ADDRESS",
+    { MTAB_XTD|MTAB_VDV|MTAB_VALR, 0040, "ADDRESS", "ADDRESS",
       &set_addr, &show_addr, NULL },
-    { MTAB_XTD|MTAB_VDV, 0, "VECTOR", "VECTOR",
+    { MTAB_XTD|MTAB_VDV|MTAB_VALR, 0, "VECTOR", "VECTOR",
       &set_vec, &show_vec, NULL },
     { 0 }
     };
@@ -292,9 +292,9 @@ REG mba2_reg[] = {
     };
 
 MTAB mba2_mod[] = {
-    { MTAB_XTD|MTAB_VDV, 0040, "ADDRESS", "ADDRESS",
+    { MTAB_XTD|MTAB_VDV|MTAB_VALR, 0040, "ADDRESS", "ADDRESS",
       &set_addr, &show_addr, NULL },
-    { MTAB_XTD|MTAB_VDV, 0, "VECTOR", "VECTOR",
+    { MTAB_XTD|MTAB_VDV|MTAB_VALR, 0, "VECTOR", "VECTOR",
       &set_vec, &show_vec, NULL },
     { 0 }
     };
diff --git a/PDP11/pdp11_rx.c b/PDP11/pdp11_rx.c
index 17bae86e..de3cab46 100644
--- a/PDP11/pdp11_rx.c
+++ b/PDP11/pdp11_rx.c
@@ -188,9 +188,9 @@ MTAB rx_mod[] = {
     { MTAB_XTD|MTAB_VDV|MTAB_VALR, 0, "VECTOR", "VECTOR",
       &set_vec, &show_vec, NULL },
 #else
-    { MTAB_XTD|MTAB_VDV, 004, "ADDRESS", "ADDRESS",
+    { MTAB_XTD|MTAB_VDV, 004, "ADDRESS", NULL,
       NULL, &show_addr, NULL },
-    { MTAB_XTD|MTAB_VDV, 0, "VECTOR", "VECTOR",
+    { MTAB_XTD|MTAB_VDV, 0, "VECTOR", NULL,
       NULL, &show_vec, NULL },
 #endif
     { 0 }
diff --git a/PDP11/pdp11_uc15.c b/PDP11/pdp11_uc15.c
index 1f4dfb83..86a20952 100644
--- a/PDP11/pdp11_uc15.c
+++ b/PDP11/pdp11_uc15.c
@@ -139,9 +139,9 @@ REG uca_reg[] = {
     };
 
 MTAB uc15_mod[] = {
-    { MTAB_XTD|MTAB_VDV, 006, "ADDRESS", "ADDRESS",
+    { MTAB_XTD|MTAB_VDV|MTAB_VALR, 006, "ADDRESS", NULL,
       NULL, &show_addr, NULL },
-    { MTAB_XTD|MTAB_VDV, 0, "VECTOR", "VECTOR",
+    { MTAB_XTD|MTAB_VDV|MTAB_VALR, 0, "VECTOR", NULL,
       NULL, &show_vec, NULL },
     { 0 }
     };