diff --git a/src/core/config/mod.rs b/src/core/config/mod.rs
index c72d49ce..60bec4dc 100644
--- a/src/core/config/mod.rs
+++ b/src/core/config/mod.rs
@@ -602,6 +602,7 @@ pub struct Config {
 	/// - "all": All created rooms are encrypted.
 	/// - "invite": Any room created with `private_chat` or
 	///   `trusted_private_chat` presets.
+	/// - "none": Explicit value for no effect.
 	/// - Other values default to no effect.
 	#[serde(default)]
 	pub encryption_enabled_by_default_for_room_type: Option<String>,
diff --git a/tuwunel-example.toml b/tuwunel-example.toml
index fa02a7a5..9e271cfc 100644
--- a/tuwunel-example.toml
+++ b/tuwunel-example.toml
@@ -472,6 +472,7 @@
 # - "all": All created rooms are encrypted.
 # - "invite": Any room created with `private_chat` or
 #   `trusted_private_chat` presets.
+# - "none": Explicit value for no effect.
 # - Other values default to no effect.
 #
 #encryption_enabled_by_default_for_room_type = false