diff --git a/src/lib/global/nsc.c b/src/lib/global/nsc.c
index 1e1a3f0c..da7d4248 100644
--- a/src/lib/global/nsc.c
+++ b/src/lib/global/nsc.c
@@ -565,8 +565,11 @@ struct symbol ship_chr_flags[] = {
     {M_SUBT, "sub-torp"},
     {M_TRADE, "trade"},
     {M_SEMILAND, "semi-land"},
+    {M_XLIGHT, "xlight"},
+    {M_CHOPPER, "chopper"},
     {M_OILER, "oiler"},
     {M_SUPPLY, "supply"},
+    {M_UNIT, "unit"},
     {M_ANTIMISSILE, "anti-missile"},
     {0, NULL}
 };