diff --git a/OPTIONS b/OPTIONS
index 0be74b7aac..6cdfab8f2b 100644
--- a/OPTIONS
+++ b/OPTIONS
@@ -22,4 +22,7 @@ Setting                   Description
                           Enable DNSSEC signature chasing support in dig.
 -DDIG_SIGCHASE=1          (Note: This feature is deprecated. Use delv
                           instead.)
+                          Increase the maximum number of configurable
+-DNS_RPZ_MAX_ZONES=64     response policy zones from 32 to 64; this is the
+                          highest possible setting
 
diff --git a/OPTIONS.md b/OPTIONS.md
index 610087e17b..d69fdfab11 100644
--- a/OPTIONS.md
+++ b/OPTIONS.md
@@ -29,4 +29,4 @@ Some of these settings are:
 |`-DCHECK_LOCAL=0`|Don't check out-of-zone addresses in `named-checkzone`|
 |`-DNS_RUN_PID_DIR=0`|Create default PID files in `${localstatedir}/run` rather than `${localstatedir}/run/{named,lwresd}/`|
 |`-DDIG_SIGCHASE=1`|Enable DNSSEC signature chasing support in `dig`.  (Note: This feature is deprecated. Use `delv` instead.)|
-
+|`-DNS_RPZ_MAX_ZONES=64`|Increase the maximum number of configurable response policy zones from 32 to 64; this is the highest possible setting|