diff --git a/ChangeLog b/ChangeLog
index 70af5dcd..7d94c615 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -16872,3 +16872,6 @@
 	* Updated the 'rlm_urlwrite' plug-in to support vlogs.
 	* Updated the 'rlm_xds' plug-in to support vlogs.
 	* Updated the 'rlm_xmpad' plug-in to support vlogs.
+2018-05-18 Fred Gleason <fredg@paravelsystems.com>
+	* Changed RD_MAX_CARDS from '8' to '24'.
+	* Changed RD_MAX_PORTS from '8' to '24'.
diff --git a/lib/rd.h b/lib/rd.h
index 41412071..05efa4f1 100644
--- a/lib/rd.h
+++ b/lib/rd.h
@@ -128,7 +128,7 @@
 /*
  * Max number of possible audio adapters
  */
-#define RD_MAX_CARDS 8
+#define RD_MAX_CARDS 24
 
 /*
  * Max number of possible audio streams/card/type
@@ -138,7 +138,7 @@
 /*
  * Max number of possible audio ports/card/type
  */
-#define RD_MAX_PORTS 8
+#define RD_MAX_PORTS 24
 
 /*
  * Max number of possible TTYs