diff --git a/hw/mcu/microchip/pic32mz/src/pic32mz_periph.c b/hw/mcu/microchip/pic32mz/src/pic32mz_periph.c
index 7168c1495a..ecd20161aa 100644
--- a/hw/mcu/microchip/pic32mz/src/pic32mz_periph.c
+++ b/hw/mcu/microchip/pic32mz/src/pic32mz_periph.c
@@ -471,7 +471,7 @@ pic32mz_periph_i2c_devs(void)
     }
 
     if (MYNEWT_VAL(I2C_4)) {
-        rc = hal_i2c_init(4, (void *)&i2c_3_cfg);
+        rc = hal_i2c_init(4, (void *)&i2c_4_cfg);
         assert(rc == 0);
     }
 }