diff --git a/mtglib/internal/obfuscated2/client_handshake.go b/mtglib/internal/obfuscated2/client_handshake.go
index eb6a5a8..41e80b3 100644
--- a/mtglib/internal/obfuscated2/client_handshake.go
+++ b/mtglib/internal/obfuscated2/client_handshake.go
@@ -48,3 +48,12 @@ func ClientHandshake(secret []byte, reader io.Reader) (int16, cipher.Stream, cip
 
 	return handshakeFrame.dc(), encryptor, decryptor, nil
 }
+
+func makeAesCtr(key, iv []byte) cipher.Stream {
+	block, err := aes.NewCipher(key)
+	if err != nil {
+		panic(err)
+	}
+
+	return cipher.NewCTR(block, iv)
+}
diff --git a/mtglib/internal/obfuscated2/utils.go b/mtglib/internal/obfuscated2/utils.go
deleted file mode 100644
index a3fdcf9..0000000
--- a/mtglib/internal/obfuscated2/utils.go
+++ /dev/null
@@ -1,15 +0,0 @@
-package obfuscated2
-
-import (
-	"crypto/aes"
-	"crypto/cipher"
-)
-
-func makeAesCtr(key, iv []byte) cipher.Stream {
-	block, err := aes.NewCipher(key)
-	if err != nil {
-		panic(err)
-	}
-
-	return cipher.NewCTR(block, iv)
-}