diff --git a/CHANGES b/CHANGES
index a8b304ad2..1fd0ea2e9 100644
--- a/CHANGES
+++ b/CHANGES
@@ -8,6 +8,7 @@ Other fixes:
  - Core: Fix crashes if core directories aren't set
  - Qt: Cap audio buffer size to 8192 (fixes mgba.io/i/1433)
  - Core: Fix crash when exiting game with cheats loaded
+ - GBA Cheats: Fix PARv3 Thumb hooks
 Misc:
  - Qt: Make mute menu option also toggle fast-forward mute (fixes mgba.io/i/1424)
 
diff --git a/src/gba/cheats/parv3.c b/src/gba/cheats/parv3.c
index 0d74aaed4..4f3a89310 100644
--- a/src/gba/cheats/parv3.c
+++ b/src/gba/cheats/parv3.c
@@ -284,7 +284,7 @@ bool GBACheatAddProActionReplayRaw(struct GBACheatSet* cheats, uint32_t op1, uin
 			return false;
 		}
 		cheats->hook = malloc(sizeof(*cheats->hook));
-		cheats->hook->address = BASE_CART0 | (op1 & (SIZE_CART0 - 1));
+		cheats->hook->address = BASE_CART0 | (op1 & (SIZE_CART0 - 2));
 		cheats->hook->mode = MODE_THUMB;
 		cheats->hook->refs = 1;
 		cheats->hook->reentries = 0;