diff --git a/firmware/libboard/octsimtest/include/board.h b/firmware/libboard/octsimtest/include/board.h
index 2d8a8964..171b2c18 100644
--- a/firmware/libboard/octsimtest/include/board.h
+++ b/firmware/libboard/octsimtest/include/board.h
@@ -63,7 +63,7 @@
 /* Phone CLK clock input (CLK_PHONE in schematic) */
 #define PIN_PHONE_CLK          {PIO_PA23A_SCK1, PIOA, ID_PIOA, PIO_PERIPH_A, PIO_DEFAULT}
 /* Pin used to switch level shifter in I/O line between rx (0) and tx (1) */
-#define PIN_USIM1_IO_DIR	{PIO_PA16, PIOA, ID_PIOA, PIO_PERIPH_A, PIO_OUTPUT_0}
+#define PIN_USIM1_IO_DIR	{PIO_PA26, PIOA, ID_PIOA, PIO_OUTPUT_0, PIO_DEFAULT}
 /* Pin used for phone USIM slot 1 communication */
 #define PINS_USIM1              PIN_PHONE_IO, PIN_PHONE_CLK, PIN_PHONE_CLK_INPUT, PIN_USIM1_VCC, PIN_PHONE_IO_INPUT, PIN_USIM1_nRST, PIN_USIM1_IO_DIR
 /* Phone I/O data signal input/output (unused USART RX input; connected to I/O_PHONE in schematic) */