diff --git a/MANIFEST.in b/MANIFEST.in
index 192128adf..caf2ae794 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1 +1,6 @@
-recursive-include letsencrypt/ *
+recursive-include letsencrypt *.json
+recursive-include letsencrypt *.sh
+recursive-include letsencrypt *.conf
+recursive-include letsencrypt *.cnf
+include letsencrypt/client/ca_offerings
+include letsencrypt/client/.ca_offerings
diff --git a/letsencrypt/client/acme.py b/letsencrypt/client/acme.py
index 70a5982ad..633b8c2b6 100755
--- a/letsencrypt/client/acme.py
+++ b/letsencrypt/client/acme.py
@@ -4,8 +4,10 @@
 # validate JSON objects as ACME protocol messages
 
 import json, jsonschema
+import pkg_resources
 
-schemata = {schema: json.load(open("letsencrypt/client/schemata/%s.json" % schema)) for schema in [
+schemata = {schema: json.load(open(pkg_resources.resource_filename(
+    __name__, "schemata/%s.json" % schema))) for schema in [
   "authorization", "authorizationRequest", "certificate", "certificateRequest",
   "challenge", "challengeRequest", "defer", "error", "revocation",
   "revocationRequest", "statusRequest"]
diff --git a/setup.py b/setup.py
index a9c717797..4b1388cc8 100755
--- a/setup.py
+++ b/setup.py
@@ -29,4 +29,6 @@ setup(
             'letsencrypt = letsencrypt.scripts.main:main'
         ]
     },
+    zip_safe=False,
+    include_package_data=True,
 )