diff --git a/itl/command-plugins.conf b/itl/command-plugins.conf
index dee69f8bf..cd9d95acf 100644
--- a/itl/command-plugins.conf
+++ b/itl/command-plugins.conf
@@ -150,10 +150,7 @@ object CheckCommand "ssl" {
 		"-p" = "$ssl_port$"
 		"--ssl" = { }
 		"--timeout" = "$ssl_timeout$"
-		"-D" = {
-			set_if = len("$ssl_cert_valid_days_warn$") > 0 && len("$ssl_cert_valid_days_critical$") > 0
-			value = "$ssl_cert_valid_days_warn$,$ssl_cert_valid_days_critical$"
-		}
+		"-D" = "$ssl_cert_valid_days_warn$,$ssl_cert_valid_days_critical$"
 	}
 
 	vars.ssl_address = "$address$"