diff --git a/README.md b/README.md
index 806930c..8389170 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,9 @@
+1. [7digital.rb](#7digital)
+2. [mock\_server.rb](#mockserver)
+3. [read\_logs.rb](#readlogs)
+4. [cross\_toolchain.rb](#crosstoolchain)
+5. [rename.rb](#rename)
+
 ## 7digital.rb
 
 7digital sells digital music but they can't handle files with non-English names.
diff --git a/tea-cleaner/Main.hs b/tea-cleaner/Main.hs
index e9fead1..5433394 100644
--- a/tea-cleaner/Main.hs
+++ b/tea-cleaner/Main.hs
@@ -1,3 +1,7 @@
+{- This Source Code Form is subject to the terms of the Mozilla Public License,
+   v. 2.0. If a copy of the MPL was not distributed with this file, You can
+   obtain one at https://mozilla.org/MPL/2.0/. -}
+
 module Main
     ( main
     ) where
diff --git a/tea-cleaner/TeaCleaner/Client.hs b/tea-cleaner/TeaCleaner/Client.hs
index 5afd6a5..fae3e6a 100644
--- a/tea-cleaner/TeaCleaner/Client.hs
+++ b/tea-cleaner/TeaCleaner/Client.hs
@@ -1,3 +1,7 @@
+{- This Source Code Form is subject to the terms of the Mozilla Public License,
+   v. 2.0. If a copy of the MPL was not distributed with this file, You can
+   obtain one at https://mozilla.org/MPL/2.0/. -}
+
 module TeaCleaner.Client
     ( Activity(..)
     , User(..)
diff --git a/tea-cleaner/TeaCleaner/Configuration.hs b/tea-cleaner/TeaCleaner/Configuration.hs
index 1d2db32..dad1450 100644
--- a/tea-cleaner/TeaCleaner/Configuration.hs
+++ b/tea-cleaner/TeaCleaner/Configuration.hs
@@ -1,3 +1,7 @@
+{- This Source Code Form is subject to the terms of the Mozilla Public License,
+   v. 2.0. If a copy of the MPL was not distributed with this file, You can
+   obtain one at https://mozilla.org/MPL/2.0/. -}
+
 module TeaCleaner.Configuration
     ( ProgramOptions(..)
     , Settings(..)
diff --git a/tea-cleaner/TeaCleaner/Filter.hs b/tea-cleaner/TeaCleaner/Filter.hs
index 658606d..434825a 100644
--- a/tea-cleaner/TeaCleaner/Filter.hs
+++ b/tea-cleaner/TeaCleaner/Filter.hs
@@ -1,3 +1,7 @@
+{- This Source Code Form is subject to the terms of the Mozilla Public License,
+   v. 2.0. If a copy of the MPL was not distributed with this file, You can
+   obtain one at https://mozilla.org/MPL/2.0/. -}
+
 module TeaCleaner.Filter
     ( FilterResult(..)
     , UserFilter(..)
diff --git a/tea-cleaner/TeaCleaner/Options.hs b/tea-cleaner/TeaCleaner/Options.hs
index 7353f8f..7965a97 100644
--- a/tea-cleaner/TeaCleaner/Options.hs
+++ b/tea-cleaner/TeaCleaner/Options.hs
@@ -1,3 +1,7 @@
+{- This Source Code Form is subject to the terms of the Mozilla Public License,
+   v. 2.0. If a copy of the MPL was not distributed with this file, You can
+   obtain one at https://mozilla.org/MPL/2.0/. -}
+
 module TeaCleaner.Options
     ( jsonOptions
     ) where