diff --git a/bacnet-stack/bacenum.h b/bacnet-stack/bacenum.h
index 780ae0d7..cc1e9598 100644
--- a/bacnet-stack/bacenum.h
+++ b/bacnet-stack/bacenum.h
@@ -568,10 +568,12 @@ typedef enum
   OBJECT_TRENDLOG = 20,
   OBJECT_LIFE_SAFETY_POINT = 21,
   OBJECT_LIFE_SAFETY_ZONE = 22,
-  // Enumerated values 0-127 are reserved for definition by ASHRAE. 
+  OBJECT_ACCUMULATOR = 23,
+  OBJECT_PULSE_CONVERTER = 24,
+  // Enumerated values 0-127 are reserved for definition by ASHRAE.
   // Enumerated values 128-1023 may be used by others subject to 
   // the procedures and constraints described in Clause 23.
-  MAX_BACNET_OBJECT_TYPES = 23 // used for bit string loop
+  MAX_BACNET_OBJECT_TYPES = 25 // used for bit string loop
 } BACNET_OBJECT_TYPE;
 
 typedef enum