diff --git a/include/nsc.h b/include/nsc.h
index aea2ad14..8a03763f 100644
--- a/include/nsc.h
+++ b/include/nsc.h
@@ -154,7 +154,6 @@ extern struct castr loan_ca[];
 extern struct castr genitem_ca[];
 extern struct castr map_ca[];
 extern struct castr bmp_ca[];
-extern struct castr ca[];
 extern struct castr commodity_ca[];
 
 /* src/lib/subs/nstr.c */