diff --git a/include/sect.h b/include/sect.h
index d512ebaf..637d40ac 100644
--- a/include/sect.h
+++ b/include/sect.h
@@ -151,9 +151,8 @@ struct dchrstr {
 #define SCT_ENLIST	31	/* enlistment center */
 #define SCT_PLAINS      32	/* plains sector */
 #define SCT_BTOWER      33	/* Bridge tower */
-#define	SCT_MAXDEF	33	/* highest sector type in header files */
 
-#define SCT_TYPE_MAX    39
+#define SCT_TYPE_MAX    38
 
 #define getsect(x, y, p) ef_read(EF_SECTOR, sctoff((x), (y)), (p))
 #define putsect(p) ef_write(EF_SECTOR, sctoff((p)->sct_x, (p)->sct_y), (p))
@@ -163,7 +162,7 @@ struct dchrstr {
 /* things relating to sectors */
 extern int sctoff(coord x, coord y);
 
-extern struct dchrstr dchr[SCT_TYPE_MAX + 1];
+extern struct dchrstr dchr[SCT_TYPE_MAX + 2];
 extern struct dchrstr bigcity_dchr;
 #define IS_BIG_CITY(type) (dchr[(type)].d_pkg == UPKG)
 
diff --git a/src/lib/global/sect.c b/src/lib/global/sect.c
index 41623968..1aae43c3 100644
--- a/src/lib/global/sect.c
+++ b/src/lib/global/sect.c
@@ -45,7 +45,7 @@
  * Initialized on startup from sect.config and deity custom config (if any).
  * Terminated by a sentinel with null d_name.
  */
-struct dchrstr dchr[SCT_TYPE_MAX + 1];
+struct dchrstr dchr[SCT_TYPE_MAX + 2];
 
 /*
  * Table of infrastructure types