diff --git a/MANIFEST.in b/MANIFEST.in
index 083adfb..6019bc9 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,3 +1,4 @@
+include *.pyx
 graft BioExt/align
 graft BioExt/merge
 graft BioExt/rateclass
diff --git a/setup.py b/setup.py
index 742e786..f9edde1 100644
--- a/setup.py
+++ b/setup.py
@@ -53,7 +53,7 @@
 
 setup(
     name='bioext',
-    version='0.19.4',
+    version='0.19.5',
     description='Misc utilities and definitions not included or hidden in BioPython',
     author='N Lance Hepler',
     author_email='nlhepler@gmail.com',