diff --git a/firmware/common/portapack_io.hpp b/firmware/common/portapack_io.hpp
index 7ec868419..ed1c82fb2 100644
--- a/firmware/common/portapack_io.hpp
+++ b/firmware/common/portapack_io.hpp
@@ -198,7 +198,7 @@ private:
 	static constexpr size_t gpio_data_shift = 8;
 	static constexpr ioportmask_t gpio_data_mask = 0xffU << gpio_data_shift;
 
-	uint8_t io_reg { 0x01 };
+	uint8_t io_reg { 0x03 };
 
 	void lcd_rd_assert() {
 		gpio_lcd_rd.set();