diff --git a/fancy_gym/envs/mujoco/walker_2d_jump/assets/walker2d.before_convert.xml b/fancy_gym/envs/mujoco/walker_2d_jump/assets/walker2d.before_convert.xml
new file mode 100644
index 0000000..f3bcbd1
--- /dev/null
+++ b/fancy_gym/envs/mujoco/walker_2d_jump/assets/walker2d.before_convert.xml
@@ -0,0 +1,64 @@
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diff --git a/fancy_gym/envs/mujoco/walker_2d_jump/assets/walker2d.xml b/fancy_gym/envs/mujoco/walker_2d_jump/assets/walker2d.xml
index f3bcbd1..96621c7 100644
--- a/fancy_gym/envs/mujoco/walker_2d_jump/assets/walker2d.xml
+++ b/fancy_gym/envs/mujoco/walker_2d_jump/assets/walker2d.xml
@@ -1,64 +1,60 @@
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