diff --git a/doc/10-icinga-template-library.md b/doc/10-icinga-template-library.md
index d96e89222..26d1b8813 100644
--- a/doc/10-icinga-template-library.md
+++ b/doc/10-icinga-template-library.md
@@ -414,7 +414,6 @@ disk\_partition		| **Optional.** The partition. **Deprecated in 2.3.**
 disk\_partition\_excluded  | **Optional.** The excluded partition. **Deprecated in 2.3.**
 disk\_partitions 	| **Optional.** The partition(s). Multiple partitions must be defined as array.
 disk\_partitions\_excluded | **Optional.** The excluded partition(s). Multiple partitions must be defined as array.
-disk\_clear             | **Optional.** Clear thresholds. May be true or false.
 disk\_exact\_match      | **Optional.** For paths or partitions specified with -p, only check for exact paths. May be true or false.
 disk\_errors\_only      | **Optional.** Display only devices/mountpoints with errors. May be true or false.
 disk\_ignore\_reserved  | **Optional.** If set, account root-reserved blocks are not accounted for freespace in perfdata. May be true or false.
diff --git a/itl/command-plugins.conf b/itl/command-plugins.conf
index 6069e0995..55cc2e4d5 100644
--- a/itl/command-plugins.conf
+++ b/itl/command-plugins.conf
@@ -1636,6 +1636,9 @@ object CheckCommand "disk" {
 	command = [ PluginDir + "/check_disk" ]
 
 	arguments = {
+		/*
+		"-C" (disk_clear) is missing on purpose, since there is no useful use case possible the way check_disk is mapped here
+		*/
 		"--extra-opts" = {
 			value = "$disk_extra_opts$"
 			description = "Read extra plugin options from an ini file."
@@ -1689,10 +1692,6 @@ object CheckCommand "disk" {
 			key = "-x"
 			value = "$disk_partition_excluded$"
 		}
-		"-C" = {
-			set_if = "$disk_clear$"
-			description = "Clear thresholds"
-		}
 		"-E" = {
 			set_if = "$disk_exact_match$"
 			description = "For paths or partitions specified with -p, only check for exact paths"