diff --git a/packages/parser-slip-encoder/lib/encoder.js b/packages/parser-slip-encoder/lib/encoder.js
index 0a8953a54..5bb48ae8f 100644
--- a/packages/parser-slip-encoder/lib/encoder.js
+++ b/packages/parser-slip-encoder/lib/encoder.js
@@ -35,16 +35,12 @@ class SlipEncoder extends Transform {
       ...options,
     }
     this.opts = opts
-
-    if (options.bluetoothQuirk) {
-      this._bluetoothQuirk = true
-    }
   }
 
   _transform(chunk, encoding, cb) {
     const chunkLength = chunk.length
 
-    if (this._bluetoothQuirk && chunkLength === 0) {
+    if (this.opts.bluetoothQuirk && chunkLength === 0) {
       // Edge case: push no data. Bluetooth-quirky SLIP parsers don't like
       // lots of 0xC0s together.
       return cb()
@@ -55,7 +51,7 @@ class SlipEncoder extends Transform {
     const encoded = Buffer.alloc(chunkLength * 2 + 2)
     let j = 0
 
-    if (this._bluetoothQuirk == true) {
+    if (this.opts.bluetoothQuirk == true) {
       encoded[j++] = this.opts.END
     }
 
diff --git a/packages/parser-slip-encoder/lib/index.js b/packages/parser-slip-encoder/lib/index.js
index c0a69f199..ed3b80cf6 100644
--- a/packages/parser-slip-encoder/lib/index.js
+++ b/packages/parser-slip-encoder/lib/index.js
@@ -1,4 +1,6 @@
-module.exports = {
-  SlipEncoder: require('./encoder'),
-  SlipDecoder: require('./decoder'),
-}
+const SlipEncoder = require('./encoder')
+const SlipDecoder = require('./decoder')
+
+module.exports = SlipEncoder
+module.exports.SlipEncoder = SlipEncoder
+module.exports.SlipDecoder = SlipDecoder