diff --git a/doc/10-icinga-template-library.md b/doc/10-icinga-template-library.md
index c38cb231ce3..15f56325faa 100644
--- a/doc/10-icinga-template-library.md
+++ b/doc/10-icinga-template-library.md
@@ -749,6 +749,7 @@ Custom variables passed as [command parameters](03-monitoring-basics.md#command-
 
 Name                             | Description
 ---------------------------------|---------------------------------
+curl_extra_opts                  | **Optional.** Read options from an ini file.
 curl_vhost                       | **Optional.** The virtual host that should be sent in the "Host" header.
 curl_ip							 | **Optional.** The host's address. Defaults to "$address$" if the host's `address` attribute is set, "$address6$" otherwise.
 curl_port                        | **Optional.** The TCP port. Defaults to 80 when not using SSL, 443 otherwise.
diff --git a/itl/command-plugins.conf b/itl/command-plugins.conf
index 54fa6b4e7aa..ff76cf5e72e 100644
--- a/itl/command-plugins.conf
+++ b/itl/command-plugins.conf
@@ -563,6 +563,10 @@ object CheckCommand "curl" {
 	command = [ PluginDir + "/check_curl" ]
 
 	arguments += {
+		"--extra-opts" = {
+			value = "$curl_extra_opts$"
+			description = "Read options from an ini file"
+		}
 		"-H" = {
 			value = "$curl_vhost$"
 			description = "Host name argument for servers using host headers (virtual host). Append a port to include it in the header (eg: example.com:5000)"