diff --git a/system/generic/inputs.tf b/system/generic/inputs.tf
index 991d15f..87b1bd8 100644
--- a/system/generic/inputs.tf
+++ b/system/generic/inputs.tf
@@ -176,37 +176,37 @@ variable "free_disk_space_forecast_time_aggregator" {
 }
 
 variable "free_disk_space_forecast_timeframe" {
-  description = "Monitor timeframe for Free diskspace forecast [available values: `last_#m` (1, 5, 10, 15, or 30), `last_#h` (1, 2, or 4), or `last_1d`]"
+  description = "Monitor timeframe for Free diskspace forecast [available values: `next_12h`, `next_#d` (1, 2, or 3), `next_#w` (1 or 2) or `next_#mo` (1, 2 or 3)]"
   type        = "string"
   default     = "next_1w"
 }
 
 variable "free_disk_space_forecast_algorithm" {
-  description = "Algorithm for the Free diskspace Forecast monitor"
+  description = "Algorithm for the Free diskspace Forecast monitor [available values: `linear` or `seasonal`]"
   type        = "string"
   default     = "linear"
 }
 
 variable "free_disk_space_forecast_deviations" {
-  description = "Deviations for the Free diskspace Forecast monitor"
+  description = "Deviations for the Free diskspace Forecast monitor [available values: `1`, `2`, `3`, `4` or `5`]"
   type        = "string"
   default     = 1
 }
 
 variable "free_disk_space_forecast_interval" {
-  description = "Interval for the Free diskspace Forecast monitor"
+  description = "Interval for the Free diskspace Forecast monitor [available values: `30m`, `60m` or `120m`]"
   type        = "string"
   default     = "60m"
 }
 
 variable "free_disk_space_forecast_linear_history" {
-  description = "History for the Free diskspace Forecast monitor"
+  description = "History for the Free diskspace Forecast monitor [available values: `12h`, `#d` (1, 2, or 3), `#w` (1, or 2) or `#mo` (1, 2 or 3)]"
   type        = "string"
   default     = "1w"
 }
 
 variable "free_disk_space_forecast_linear_model" {
-  description = "Model for the Free diskspace Forecast monitor"
+  description = "Model for the Free diskspace Forecast monitor [available values: `default`, `simple` or `reactive`]"
   type        = "string"
   default     = "default"
 }