diff --git a/hardware.inc b/hardware.inc
index bcb3cbe..4edb00a 100644
--- a/hardware.inc
+++ b/hardware.inc
@@ -1068,7 +1068,7 @@ def AUD3RAM equ $FF1A ; $FF1A-$FF1E
 def AUD4RAM equ $FF1F ; $FF1F-$FF23
 def AUDRAM_SIZE equ 5 ; size of each audio channel RAM in bytes
 
-def _AUD3WAVERAM equ $FF30 ; $FF30-$FF3F
+def AUD3WAVERAM equ $FF30 ; $FF30-$FF3F
 def AUD3WAVE_SIZE equ 16 ; size of wave pattern RAM in bytes
 
 
diff --git a/hardware_compat.inc b/hardware_compat.inc
index 140b481..297e829 100644
--- a/hardware_compat.inc
+++ b/hardware_compat.inc
@@ -379,6 +379,13 @@ def OBJ_B        equ OBJ_SIZE
 def OAM_B equ OAM_SIZE
 
 
+;******************************************************************************
+; Audio channel RAM addresses
+;******************************************************************************
+
+def _AUD3WAVERAM equ AUD3WAVERAM
+
+
 ;******************************************************************************
 ; Boot-up register values
 ;******************************************************************************