diff --git a/MANIFEST.in b/MANIFEST.in
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+++ b/MANIFEST.in
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+# Include the README
+include README.md
+
+# Include the license file
+include LICENSE
+
+# Include stl and xml files from the fancy_gym/envs/mujoco directory
+recursive-include fancy_gym/envs/mujoco *.stl
+recursive-include fancy_gym/envs/mujoco *.xml