diff --git a/docs/resources/virtual_environment_vm.md b/docs/resources/virtual_environment_vm.md
index 1e93cbfa..64ce3c7a 100644
--- a/docs/resources/virtual_environment_vm.md
+++ b/docs/resources/virtual_environment_vm.md
@@ -195,6 +195,7 @@ output "ubuntu_vm_public_key" {
         * `read_burstable` - (Optional) The maximum burstable read speed in megabytes per second.
         * `write` - (Optional) The maximum write speed in megabytes per second.
         * `write_burstable` - (Optional) The maximum burstable write speed in megabytes per second.
+    * `iothread` - (Optional) Whether to use iothreads for this disk (defaults to `false`).
 * `initialization` - (Optional) The cloud-init configuration.
     * `datastore_id` - (Optional) The identifier for the datastore to create the cloud-init disk in (defaults
       to `local-lvm`).
diff --git a/proxmoxtf/resource_virtual_environment_vm.go b/proxmoxtf/resource_virtual_environment_vm.go
index a263d18b..6dbdc6a9 100644
--- a/proxmoxtf/resource_virtual_environment_vm.go
+++ b/proxmoxtf/resource_virtual_environment_vm.go
@@ -2619,6 +2619,12 @@ func resourceVirtualEnvironmentVMReadCustom(ctx context.Context, d *schema.Resou
 			disk[mkResourceVirtualEnvironmentVMDiskSpeed] = []interface{}{}
 		}
 
+		if dd.IOThread != nil {
+			disk[mkResourceVirtualEnvironmentVMDiskIOThread] = *dd.IOThread
+		} else {
+			disk[mkResourceVirtualEnvironmentVMDiskIOThread] = false
+		}
+
 		diskMap[di] = disk
 	}