diff --git a/configs/DREAMWORKSH743/config.h b/configs/DREAMWORKSH743/config.h
index 11b4dc207..6df2d33e9 100644
--- a/configs/DREAMWORKSH743/config.h
+++ b/configs/DREAMWORKSH743/config.h
@@ -127,7 +127,7 @@
 #define TIMUP3_DMA_OPT  11
 #define TIMUP5_DMA_OPT  12
 
-#define MAG_I2C_INSTANCE  I2CDEV_2
+#define MAG_I2C_INSTANCE  I2CDEV_1
 #define BARO_I2C_INSTANCE I2CDEV_1
 
 #define DEFAULT_BLACKBOX_DEVICE        BLACKBOX_DEVICE_FLASH