diff --git a/MANIFEST.in b/MANIFEST.in
index ffcfe6f0..bf4d1a6a 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -4,4 +4,5 @@ recursive-include src *
 recursive-include python *
 recursive-include single_include *
 recursive-include external *
+recursive-include cmake *