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diff --git a/meta-raspberrypi/docs/extra-build-config.md b/meta-raspberrypi/docs/extra-build-config.md
index a2b68d8ce..843247aaa 100644
--- a/meta-raspberrypi/docs/extra-build-config.md
+++ b/meta-raspberrypi/docs/extra-build-config.md
@@ -184,6 +184,10 @@ When using device tree kernels, set this variable to enable I2C:
ENABLE_I2C = "1"
+Furthermore, to auto-load I2C kernel modules set:
+
+ KERNEL_MODULE_AUTOLOAD_rpi += "i2c-dev i2c-bcm2708"
+
## Enable PiTFT support
Basic support for using PiTFT screens can be enabled by adding below in