diff --git a/robotgo.go b/robotgo.go
index ee3eff1..056e2ea 100644
--- a/robotgo.go
+++ b/robotgo.go
@@ -700,8 +700,8 @@ func ReadAll() (string, error) {
 }
 
 // WriteAll write string to clipboard
-func WriteAll(text string) {
-	clipboard.WriteAll(text)
+func WriteAll(text string) error {
+	return clipboard.WriteAll(text)
 }
 
 // CharCodeAt char code at utf-8
@@ -791,7 +791,7 @@ func PasteStr(str string) string {
 	if runtime.GOOS == "darwin" {
 		return KeyTap("v", "command")
 	}
-	
+
 	return KeyTap("v", "control")
 }
 
diff --git a/robotgo_test.go b/robotgo_test.go
index 69a7c4b..d3a4469 100644
--- a/robotgo_test.go
+++ b/robotgo_test.go
@@ -105,6 +105,15 @@ func TestKey(t *testing.T) {
 	tt.Empty(t, e)
 }
 
+func TestClip(t *testing.T) {
+	err := WriteAll("s")
+	tt.Nil(t, err)
+
+	s, e := ReadAll()
+	tt.Equal(t, "s", s)
+	tt.Nil(t, e)
+}
+
 func TestTypeStr(t *testing.T) {
 	c := CharCodeAt("s", 0)
 	tt.Equal(t, 115, c)