diff --git a/boards/nxp/fmurt1170-v1/src/i2c.cpp b/boards/nxp/fmurt1170-v1/src/i2c.cpp
index 40cbd9a4e9..7e4a8ea634 100644
--- a/boards/nxp/fmurt1170-v1/src/i2c.cpp
+++ b/boards/nxp/fmurt1170-v1/src/i2c.cpp
@@ -36,6 +36,8 @@
 #if defined(CONFIG_I2C)
 constexpr px4_i2c_bus_t px4_i2c_buses[I2C_BUS_MAX_BUS_ITEMS] = {
 	initI2CBusExternal(1),
-	initI2CBusExternal(5),
+	initI2CBusExternal(2),
+	initI2CBusExternal(3),
+	initI2CBusInternal(6),
 };
 #endif