diff --git a/website/docs/golioth-exploration/README.md b/website/docs/golioth-exploration/README.md
index 3b7e423..7e0f369 100644
--- a/website/docs/golioth-exploration/README.md
+++ b/website/docs/golioth-exploration/README.md
@@ -36,3 +36,12 @@ Nordic nRF9160 Development Kit (nRF9160 DK) as the Target device during this
 training. We will walk through how to download a pre-compiled binary, flash it
 to the device, and add your Golioth credentials so that it can connect. You will
 interact with this board while learning about the Golioth services.
+
+:::info Sample code repository
+
+This module uses a pre-compiled binary that you will download as you work your
+way through the training. Source code for this binary is available in 01_IOT
+folder of [the zephyr-training
+repository](https://github.com/golioth/zephyr-training) on GitHub.
+
+:::
diff --git a/website/docs/zephyr-training/README.md b/website/docs/zephyr-training/README.md
index 5ee4445..8cc3641 100644
--- a/website/docs/zephyr-training/README.md
+++ b/website/docs/zephyr-training/README.md
@@ -42,3 +42,9 @@ you set up during the exploration.
 
 :::
 
+:::info Sample code repository
+
+All sample codes used in this module is available in [the zephyr-training
+repository](https://github.com/golioth/zephyr-training) on GitHub.
+
+:::