diff --git a/helpers/helpers.go b/helpers/helpers.go
index 1801da0..6ad804b 100644
--- a/helpers/helpers.go
+++ b/helpers/helpers.go
@@ -1,8 +1,6 @@
 package helpers
 
 import (
-	"path/filepath"
-
 	"github.com/MlkMahmud/jack-compiler/types"
 )
 
@@ -46,22 +44,3 @@ func Contains[T comparable](arr []T, elem T) bool {
 	}
 	return false
 }
-
-func WriteSymbol(lexeme string) string {
-	switch lexeme {
-	case "<":
-		return "&lt;"
-	case ">":
-		return "&gt;"
-	case "&":
-		return "&amp;"
-	default:
-		return lexeme
-	}
-}
-
-func ReplaceFileExt(filename, ext string) string {
-	extension := filepath.Ext(filename)
-	basename := filename[0 : len(filename)-len(extension)]
-	return basename + ext
-}
diff --git a/lexer/lexer_test.go b/lexer/lexer_test.go
index e3d2bf9..5f7d473 100644
--- a/lexer/lexer_test.go
+++ b/lexer/lexer_test.go
@@ -9,12 +9,25 @@ import (
 	"testing"
 
 	. "github.com/MlkMahmud/jack-compiler/types"
-	. "github.com/MlkMahmud/jack-compiler/helpers"
 	. "github.com/MlkMahmud/jack-compiler/lexer"
 )
 
 const TEST_DATA_PATH = "../testdata"
 
+func writeSymbol(lexeme string) string {
+	switch lexeme {
+	case "<":
+		return "&lt;"
+	case ">":
+		return "&gt;"
+	case "&":
+		return "&amp;"
+	default:
+		return lexeme
+	}
+}
+
+
 func readFileContent(filename string) string {
 	file, _ := os.Open(filename)
 	bytes, err := io.ReadAll(file)
@@ -39,7 +52,7 @@ func writeTokensToXML(tokens []Token, dest string) {
 			fmt.Sprintf(
 				"  <%s> %s </%s>\n",
 				token.TokenType.String(),
-				WriteSymbol(token.Lexeme),
+				writeSymbol(token.Lexeme),
 				token.TokenType.String(),
 			),
 		)