diff --git a/CHANGES b/CHANGES
index eb7f0c29f..518621ede 100644
--- a/CHANGES
+++ b/CHANGES
@@ -23,6 +23,7 @@ Bugfixes:
  - GBA Savedata: Fix savedata unmasking (fixes mgba.io/i/441)
  - Util: Fix overflow when loading invalid UPS patches
  - Tools: Fix recurring multiple times over the same library
+ - GBA I/O: Handle audio registers specially when deserializing
 Misc:
  - SDL: Remove scancode key input
  - GBA Video: Clean up unused timers
diff --git a/src/gba/io.c b/src/gba/io.c
index c788fb243..719c2be53 100644
--- a/src/gba/io.c
+++ b/src/gba/io.c
@@ -251,8 +251,8 @@ static const int _isRSpecialRegister[REG_MAX >> 1] = {
 	1, 1, 1, 1, 1, 1, 1, 1,
 	1, 1, 1, 1, 1, 1, 1, 1,
 	// Audio
-	0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 1, 0, 0, 0, 1, 0,
+	0, 0, 1, 0, 0, 0, 1, 0,
 	0, 0, 0, 0, 1, 0, 0, 0,
 	1, 1, 1, 1, 1, 1, 1, 1,
 	1, 1, 1, 1, 0, 0, 0, 0,
@@ -292,9 +292,9 @@ static const int _isWSpecialRegister[REG_MAX >> 1] = {
 	0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0,
 	// Audio
-	0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 1, 0, 0, 0, 0, 0,
+	1, 1, 1, 0, 1, 0, 1, 0,
+	1, 1, 1, 0, 1, 0, 1, 0,
+	1, 0, 1, 0, 0, 0, 0, 0,
 	1, 1, 1, 1, 1, 1, 1, 1,
 	1, 1, 1, 1, 0, 0, 0, 0,
 	// DMA