diff --git a/Makefile b/Makefile
index 8db370bb..66f69076 100644
--- a/Makefile
+++ b/Makefile
@@ -9,7 +9,7 @@ COMMIT := $(shell git log | head -n 1 | awk '{print substr($$2, 0, 12)}')
 NOW := $(shell date +"%FT%T%z")
 
 # ROOT_DIR := $(shell dirname $(realpath $(firstword $(MAKEFILE_LIST))))
-TESTFOLDER := $(shell $(GO) list ./... | grep -E 'api|model|flow|script|fs|i18n|connector|query|plugin|cert' | grep -vE 'examples|tests*|config|widgets')
+TESTFOLDER := $(shell $(GO) list ./... | grep -E 'api|model|flow|script|fs|i18n|connector|query|plugin|cert|crypto' | grep -vE 'examples|tests*|config|widgets')
 TESTTAGS ?= ""
 
 # TESTWIDGETS := $(shell $(GO) list ./widgets/...)
diff --git a/main.go b/main.go
index b59480eb..7ded00d2 100644
--- a/main.go
+++ b/main.go
@@ -6,7 +6,6 @@ import (
 	_ "github.com/yaoapp/gou/encoding"
 	_ "github.com/yaoapp/yao/crypto"
 	_ "github.com/yaoapp/yao/helper"
-	_ "github.com/yaoapp/yao/system"
 	_ "github.com/yaoapp/yao/utils"
 )
 
diff --git a/system/process.go b/system/process.go
deleted file mode 100644
index c1155c60..00000000
--- a/system/process.go
+++ /dev/null
@@ -1,33 +0,0 @@
-package system
-
-// func init() {
-// 	// gou.RegisterProcessHandler("yao.system.Exec", processExec)
-// }
-
-// // processExec execute the system command
-// func processExec(process *gou.Process) interface{} {
-// 	process.ValidateArgNums(1)
-// 	cmd := process.ArgsString(0)
-
-// 	_, err := exec.LookPath(cmd)
-// 	if err != nil {
-// 		exception.New("command %s not found: %s", 400, cmd, err.Error()).Throw()
-// 		return nil
-// 	}
-
-// 	args := []string{}
-// 	for i, arg := range process.Args {
-// 		if i == 0 {
-// 			continue
-// 		}
-// 		args = append(args, fmt.Sprintf("%v", arg))
-// 	}
-
-// 	res, err := exec.Command(cmd, args...).Output()
-// 	if err != nil {
-// 		exception.New("command %s error: %s", 500, cmd, err.Error()).Throw()
-// 		return nil
-// 	}
-
-// 	return strings.TrimRight(string(res), "\n")
-// }
diff --git a/system/process_test.go b/system/process_test.go
deleted file mode 100644
index bfad991d..00000000
--- a/system/process_test.go
+++ /dev/null
@@ -1,9 +0,0 @@
-package system
-
-// func TestProcessReturn(t *testing.T) {
-// 	output, err := process.New("yao.system.Exec", "echo", "hello").Exec()
-// 	if err != nil {
-// 		t.Fatal(err)
-// 	}
-// 	assert.Equal(t, "hello", output)
-// }
diff --git a/system/system.go b/system/system.go
deleted file mode 100644
index bfd256e1..00000000
--- a/system/system.go
+++ /dev/null
@@ -1,4 +0,0 @@
-package system
-
-// Exec call system command
-// func Exec(cmd string, args ...string) {}