diff --git a/Makefile b/Makefile
index 4c00444..5fe1612 100644
--- a/Makefile
+++ b/Makefile
@@ -4,6 +4,6 @@ update\:data:
 	wget https://github.com/BYVoid/OpenCC/archive/refs/heads/master.zip -O tmp/opencc.zip
 	unzip tmp/opencc.zip -d tmp/
 	sh ./merge-data.sh
+
 test:
-	sh ./merge-data.sh
-	go test ./...
\ No newline at end of file
+	GO111MODULE=auto go test -cover ./...
diff --git a/dictionary/HKPhrasesFinance.txt b/dictionary/HKPhrasesFinance.txt
index e9f2508..3018d8a 100644
--- a/dictionary/HKPhrasesFinance.txt
+++ b/dictionary/HKPhrasesFinance.txt
@@ -84,5 +84,4 @@
 被迫倉	被挾倉
 高峰	高峰
 開户	開戶
-開户	開戶
 户	戶
diff --git a/opencc.go b/opencc.go
index 7f3b3fd..840f4e2 100644
--- a/opencc.go
+++ b/opencc.go
@@ -4,12 +4,9 @@ package opencc
 import (
 	"embed"
 	"encoding/json"
-	"flag"
 	"fmt"
-	"os"
 	"path"
 	"reflect"
-	"runtime"
 	"strings"
 
 	"github.com/liuzl/da"
@@ -21,22 +18,6 @@ var cf embed.FS
 //go:embed dictionary
 var df embed.FS
 
-var (
-	// Dir is the parent dir for config and dictionary
-	Dir = flag.String("dir", defaultDir(), "dict dir")
-)
-
-func defaultDir() string {
-	if runtime.GOOS == "windows" {
-		return `C:\gocc\`
-	}
-	if goPath, ok := os.LookupEnv("GOPATH"); ok {
-		return goPath + "/src/github.com/longbridgeapp/opencc/"
-	} else {
-		return `/usr/local/share/gocc/`
-	}
-}
-
 // Group holds a sequence of dicts
 type Group struct {
 	Files []string