diff --git a/src/addresses.h b/src/addresses.h
index 403ec3f966..c962328e60 100644
--- a/src/addresses.h
+++ b/src/addresses.h
@@ -136,6 +136,7 @@
 #define RCT2_ADDRESS_GAME_FLAGS						0x013573E4
 #define RCT2_ADDRESS_PARK_ENTRANCE_FEE				0x013573E8
 #define RCT2_ADDRESS_GUESTS_IN_PARK					0x01357844
+#define RCT2_ADDRESS_MONTHLY_RIDE_INCOME			0x01357894
 #define RCT2_ADDRESS_CURRENT_PARK_RATING			0x01357CB0
 #define RCT2_ADDRESS_PARK_RATING_HISTORY			0x01357CB2
 #define RCT2_ADDRESS_GUESTS_IN_PARK_HISTORY			0x01357CD2