diff --git a/js/js.go b/js/js.go
index 209b4a2..990c238 100644
--- a/js/js.go
+++ b/js/js.go
@@ -8,7 +8,7 @@ import (
 	"log"
 )
 
-var encoder = gpt_bpe.GPT2Encoder
+var encoder gpt_bpe.GPTEncoder
 
 func Tokenize(text string) gpt_bpe.Tokens {
 	return *encoder.Encode(&text)
@@ -20,6 +20,7 @@ func Decode(arr []byte) string {
 }
 
 func init() {
+	encoder = gpt_bpe.NewGPT2Encoder()
 	js.Module.Get("exports").Set("decode", Decode)
 	js.Module.Get("exports").Set("tokenize", Tokenize)
 	log.Printf("GPT-2 BPE Decoder Loaded")