diff --git a/MANIFEST.in b/MANIFEST.in
index 368e4579..cc2d4475 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,3 +1,4 @@
 recursive-include rofunc/simulator/assets/ *
 recursive-include rofunc/config/ *
-recursive-exclude rofunc/simulator/assets/urdf/ycb *
\ No newline at end of file
+recursive-exclude rofunc/simulator/assets/urdf/ycb *
+recursive-include rofunc/utils/robolab/formatter/mjcf_parser/ *
\ No newline at end of file