diff --git a/letsencrypt/__init__.py b/letsencrypt/__init__.py
index e69de29bb..9c0ff7662 100644
--- a/letsencrypt/__init__.py
+++ b/letsencrypt/__init__.py
@@ -0,0 +1 @@
+"""Let's Encrypt."""
diff --git a/letsencrypt/client/__init__.py b/letsencrypt/client/__init__.py
index e69de29bb..d6c102964 100644
--- a/letsencrypt/client/__init__.py
+++ b/letsencrypt/client/__init__.py
@@ -0,0 +1 @@
+"""Let's Encrypt client."""
diff --git a/letsencrypt/scripts/__init__.py b/letsencrypt/scripts/__init__.py
index e69de29bb..3860534ca 100644
--- a/letsencrypt/scripts/__init__.py
+++ b/letsencrypt/scripts/__init__.py
@@ -0,0 +1 @@
+"""Let's Encrypt scripts."""