diff --git a/CHANGES b/CHANGES
index 98c9c29b0..756f305af 100644
--- a/CHANGES
+++ b/CHANGES
@@ -14,6 +14,7 @@ Bugfixes:
  - GBA Video: Fix edge case with sprite blend modes and semitransparency
  - GBA Video: Fix objwin and blending interaction on sprites
  - GBA Video: Fix OBJ semitransparency improperly interacting with other blending ops
+ - GBA: Fix autodetect problems with some bad dumps of Super Mario Advance 2
 Misc:
  - Qt: Remove useless help icons in dialogs
  - GBA: Attempting to save a screenshot-style savestate should be allowed without libpng
diff --git a/src/gba/supervisor/overrides.c b/src/gba/supervisor/overrides.c
index 85e0f8462..01c232ea9 100644
--- a/src/gba/supervisor/overrides.c
+++ b/src/gba/supervisor/overrides.c
@@ -124,7 +124,7 @@ static const struct GBACartridgeOverride _overrides[] = {
 	// Super Mario Advance 2
 	{ "AA2J", SAVEDATA_EEPROM, HW_NONE, 0x800052E },
 	{ "AA2E", SAVEDATA_EEPROM, HW_NONE, 0x800052E },
-	{ "AA2P", SAVEDATA_EEPROM, HW_NONE, 0x800052E },
+	{ "AA2P", SAVEDATA_AUTODETECT, HW_NONE, 0x800052E },
 
 	// Super Mario Advance 3
 	{ "A3AJ", SAVEDATA_EEPROM, HW_NONE, 0x8002B9C },