diff --git a/cara/__init__.py b/cara/__init__.py
index 63a84eb4..8f9d169f 100644
--- a/cara/__init__.py
+++ b/cara/__init__.py
@@ -1,3 +1,5 @@
+# This module is part of CARA. Please see the repository at
+# https://gitlab.cern.ch/cara/cara for details of the license and terms of use.
 """
 Documentation for the CARA package
 
diff --git a/cara/apps/calculator/__init__.py b/cara/apps/calculator/__init__.py
index 12c8a624..adcfb7f6 100644
--- a/cara/apps/calculator/__init__.py
+++ b/cara/apps/calculator/__init__.py
@@ -1,3 +1,6 @@
+# This module is part of CARA. Please see the repository at
+# https://gitlab.cern.ch/cara/cara for details of the license and terms of use.
+
 import datetime
 import base64
 import html
diff --git a/cara/models.py b/cara/models.py
index d761b0c3..f8b99d33 100644
--- a/cara/models.py
+++ b/cara/models.py
@@ -1,3 +1,5 @@
+# This module is part of CARA. Please see the repository at
+# https://gitlab.cern.ch/cara/cara for details of the license and terms of use.
 """
 This module implements the core CARA models.
 
diff --git a/setup.py b/setup.py
index f5e2968a..e99d3185 100644
--- a/setup.py
+++ b/setup.py
@@ -1,3 +1,5 @@
+# This module is part of CARA. Please see the repository at
+# https://gitlab.cern.ch/cara/cara for details of the license and terms of use.
 """
 setup.py for CARA.