diff --git a/docs/resources/virtual_environment_vm.md b/docs/resources/virtual_environment_vm.md
index 0dd16eb6b..8acb5c191 100644
--- a/docs/resources/virtual_environment_vm.md
+++ b/docs/resources/virtual_environment_vm.md
@@ -422,6 +422,7 @@ output "ubuntu_vm_public_key" {
         - `win7` - Windows 7.
         - `win8` - Windows 8, 2012 or 2012 R2.
         - `win10` - Windows 10 or 2016.
+        - `win11` - Windows 11
         - `wvista` - Windows Vista.
         - `wxp` - Windows XP.
 - `pool_id` - (Optional) The identifier for a pool to assign the virtual machine
diff --git a/proxmoxtf/resource/vm.go b/proxmoxtf/resource/vm.go
index b72ee3f4f..875e16e67 100644
--- a/proxmoxtf/resource/vm.go
+++ b/proxmoxtf/resource/vm.go
@@ -3370,6 +3370,7 @@ func vmGetOperatingSystemTypeValidator() schema.SchemaValidateDiagFunc {
 		"win7",
 		"win8",
 		"win10",
+		"win11",
 		"wvista",
 		"wxp",
 	}, false))