diff --git a/src/index.ts b/src/index.ts
index f5d0e3a..3654258 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -58,7 +58,7 @@ export type NodeType = 'js' | 'go'
 export type PeerIdType = 'rsa' | 'ed25519' | 'secp256k1'
 export type PubSubRouter = 'gossipsub' | 'floodsub'
 export type Muxer = 'mplex' | 'yamux'
-export type Encryption = 'noise' | 'tls'
+export type Encryption = 'noise' | 'tls' | 'plaintext'
 export type TransportType = 'tcp' | 'webtransport' | 'webrtc-direct'
 
 export interface SpawnOptions {
diff --git a/src/utils/test-matrix.ts b/src/utils/test-matrix.ts
index 9d08fa3..825421b 100644
--- a/src/utils/test-matrix.ts
+++ b/src/utils/test-matrix.ts
@@ -8,7 +8,7 @@ export interface TestFunction {
 export function runTests (name: string, fn: TestFunction, factory: DaemonFactory): void {
   const keyTypes: PeerIdType[] = ['ed25519', 'rsa', 'secp256k1']
   const impls: NodeType[] = ['js', 'go']
-  const encrypters: Encryption[] = ['noise', 'tls']
+  const encrypters: Encryption[] = ['noise', 'tls', 'plaintext']
   const muxers: Muxer[] = ['mplex', 'yamux']
 
   for (const keyType of keyTypes) {