diff --git a/src/docs/markdown/caddyfile/directives/encode.md b/src/docs/markdown/caddyfile/directives/encode.md
index 9c2a447..29d283f 100644
--- a/src/docs/markdown/caddyfile/directives/encode.md
+++ b/src/docs/markdown/caddyfile/directives/encode.md
@@ -31,7 +31,7 @@ encode [<matcher>] <formats...> {
 
 	match {
 		status <code...>
-		header <field> <value>
+		header <field> [<value>]
 	}
 }
 ```
diff --git a/src/docs/markdown/caddyfile/directives/header.md b/src/docs/markdown/caddyfile/directives/header.md
index a716616..3c99c31 100644
--- a/src/docs/markdown/caddyfile/directives/header.md
+++ b/src/docs/markdown/caddyfile/directives/header.md
@@ -44,7 +44,7 @@ header [<matcher>] [[+|-|?|>]<field> [<value>|<find>] [<replace>]] {
 	# or a match block
 	match {
 		status <code...>
-		header <field> <value>
+		header <field> [<value>]
 	}
 }
 ```