diff --git a/tlstunnel.1.scd b/tlstunnel.1.scd
index 034057e..161c7ad 100644
--- a/tlstunnel.1.scd
+++ b/tlstunnel.1.scd
@@ -61,7 +61,7 @@ The following directives are supported:
 
 	The tls directive supports the following sub-directives:
 
-	*ca* <url>
+	*acme_ca* <url>
 		ACME Certificate Authority endpoint.
 
 # FILES