diff --git a/CHANGES b/CHANGES
index 8696acd5d..be86026f9 100644
--- a/CHANGES
+++ b/CHANGES
@@ -8,6 +8,7 @@ Emulation fixes:
  - GB SIO: Disabling SIO should cancel pending transfers (fixes mgba.io/i/2537)
  - GBA Audio: Fix sample timing drifting when changing sample interval
  - GBA Audio: Fix initial channel 3 wave RAM (fixes mgba.io/i/2947)
+ - GBA GPIO: Fix tilt scale and orientation (fixes mgba.io/i/2703)
  - GBA BIOS: Fix clobbering registers with word-sized CpuSet
  - GBA SIO: Fix normal mode SI/SO semantics (fixes mgba.io/i/2925)
 Other fixes:
diff --git a/src/gba/cart/gpio.c b/src/gba/cart/gpio.c
index 0bb7f3429..a5397ff98 100644
--- a/src/gba/cart/gpio.c
+++ b/src/gba/cart/gpio.c
@@ -421,8 +421,8 @@ void GBAHardwareTiltWrite(struct GBACartridgeHardware* hw, uint32_t address, uin
 			int32_t x = rotationSource->readTiltX(rotationSource);
 			int32_t y = rotationSource->readTiltY(rotationSource);
 			// Normalize to ~12 bits, focused on 0x3A0
-			hw->tiltX = (x >> 21) + 0x3A0; // Crop off an extra bit so that we can't go negative
-			hw->tiltY = (y >> 21) + 0x3A0;
+			hw->tiltX = 0x3A0 - (x >> 22);
+			hw->tiltY = 0x3A0 - (y >> 22);
 		} else {
 			mLOG(GBA_HW, GAME_ERROR, "Tilt sensor wrote wrong byte to %04x: %02x", address, value);
 		}