diff --git a/doc/10-icinga-template-library.md b/doc/10-icinga-template-library.md
index 388817d2d..3e714a318 100644
--- a/doc/10-icinga-template-library.md
+++ b/doc/10-icinga-template-library.md
@@ -197,6 +197,7 @@ apt_exclude             | **Optional.** Exclude packages matching REGEXP from th
 apt_critical            | **Optional.** If the full package information of any of the upgradable packages match this REGEXP, the plugin will return CRITICAL status. Can be specified multiple times.
 apt_timeout             | **Optional.** Seconds before plugin times out (default: 10).
 apt_only_critical       | **Optional.** Only warn about critical upgrades.
+apt_list                | **Optional.** List packages available for upgrade.
 
 
 ### breeze <a id="plugin-check-command-breeze"></a>
diff --git a/itl/command-plugins.conf b/itl/command-plugins.conf
index 8868b0456..9960d10a7 100644
--- a/itl/command-plugins.conf
+++ b/itl/command-plugins.conf
@@ -1958,6 +1958,10 @@ object CheckCommand "apt" {
 			set_if = "$apt_only_critical$"
 			description = "Only warn about critical upgrades."
 		}
+		"--list" = {
+			set_if = "$apt_list$"
+			description = "List packages available for upgrade."
+		}
 	}
 
 	timeout = 5m