diff --git a/index.md b/index.md
index 402cb2a..e51e8c4 100644
--- a/index.md
+++ b/index.md
@@ -17,6 +17,7 @@ Setup K3s cluster nodes.
   - [k3s_node_name](#k3s_node_name)
   - [k3s_packages](#k3s_packages)
   - [k3s_packages_extra](#k3s_packages_extra)
+  - [k3s_protect_kernel_defaults](#k3s_protect_kernel_defaults)
   - [k3s_reset](#k3s_reset)
   - [k3s_selinux_enabled](#k3s_selinux_enabled)
   - [k3s_server](#k3s_server)
@@ -103,6 +104,14 @@ k3s_packages:
 k3s_packages_extra: []
 ```
 
+### k3s_protect_kernel_defaults
+
+#### Default value
+
+```YAML
+k3s_protect_kernel_defaults: false
+```
+
 ### k3s_reset
 
 #### Default value