diff --git a/doc/examples.rst b/doc/examples.rst
index 30b7757c..eda87e5a 100644
--- a/doc/examples.rst
+++ b/doc/examples.rst
@@ -8,6 +8,9 @@ Examples
 
 This page showcases Hawkmoth in action.
 
+The ``[source]`` links are optional, and can be enabled via the
+:py:data:`hawkmoth_source_uri` option.
+
 .. contents::
    :local:
    :depth: 1
diff --git a/test/update-examples.py b/test/update-examples.py
index 83e33898..ac1625d6 100755
--- a/test/update-examples.py
+++ b/test/update-examples.py
@@ -33,6 +33,9 @@ def print_header():
 
 This page showcases Hawkmoth in action.
 
+The ``[source]`` links are optional, and can be enabled via the
+:py:data:`hawkmoth_source_uri` option.
+
 .. contents::
    :local:
    :depth: 1