diff --git a/PDP11/pdp11_cis.c b/PDP11/pdp11_cis.c
index a61db0e2..27ea88e2 100644
--- a/PDP11/pdp11_cis.c
+++ b/PDP11/pdp11_cis.c
@@ -210,7 +210,7 @@ static int32 opntab[128][MAXOPN] = {
     {0, 0, 0, 0}, {0, 0, 0, 0},
     {0, 0, 0, 0}, {0, 0, 0, 0},
     {0, 0, 0, 0}, {0, 0, 0, 0},
-    {0, 0, 0, 0}, {0, 0, 0, 0},                         /* LD2R */
+    {0, 0, 0, 0}, {0, 0, 0, 0},                         /* L2DR */
     {0, 0, 0, 0}, {0, 0, 0, 0},
     {0, 0, 0, 0}, {0, 0, 0, 0},
     {0, 0, 0, 0}, {0, 0, 0, 0},
@@ -235,7 +235,7 @@ static int32 opntab[128][MAXOPN] = {
     {R0_DESC, R2_DESC, 0, 0},                           /* CVTNP */
     {R0_DESC, R2_DESC, R4_ARG, 0},                      /* ASHN */
     {R0_DESC, 0, 0, 0},                                 /* CVTLN */
-    {0, 0, 0, 0}, {0, 0, 0, 0},                         /* LD3R */
+    {0, 0, 0, 0}, {0, 0, 0, 0},                         /* L3DR */
     {0, 0, 0, 0}, {0, 0, 0, 0},
     {0, 0, 0, 0}, {0, 0, 0, 0},
     {0, 0, 0, 0}, {0, 0, 0, 0},