diff --git a/CHANGES b/CHANGES
index 81a3c8487..d8cff9d39 100644
--- a/CHANGES
+++ b/CHANGES
@@ -8,6 +8,7 @@ Version 0.15
 
 (feature release, released on X)
 - Fix Python 3.2 compatibility issue with noatime open() (#164)
+- Include missing pyx files in dist files (#168)
 
 Version 0.14
 ------------
diff --git a/MANIFEST.in b/MANIFEST.in
index 100b5d953..596768190 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,4 +1,5 @@
 include README.rst LICENSE CHANGES MANIFEST.in versioneer.py
+recursive-include attic *.pyx
 recursive-include docs *
 recursive-exclude docs *.pyc
 recursive-exclude docs *.pyo