diff --git a/MANIFEST.in b/MANIFEST.in
index 626bff7..15993fe 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -10,4 +10,5 @@ recursive-exclude * *.py[co]
 
 recursive-include docs *.rst conf.py Makefile make.bat
 include versioneer.py
-include heron/_version.py
+recursive-include heron/models/data/ *.dat
+