diff --git a/g/os/genv/genv_test.go b/g/os/genv/genv_test.go
index c67063d1c..9f9a894e4 100644
--- a/g/os/genv/genv_test.go
+++ b/g/os/genv/genv_test.go
@@ -15,7 +15,7 @@ func Test_Genv_All(t *testing.T) {
 
 func Test_Genv_Get(t *testing.T) {
 	gtest.Case(t, func() {
-		key := "TEST_ENV"
+		key := "TEST_GET_ENV"
 		err := os.Setenv(key, "TEST")
 		gtest.Assert(err, nil)
 		gtest.AssertEQ(genv.Get(key), "TEST")
@@ -24,7 +24,7 @@ func Test_Genv_Get(t *testing.T) {
 
 func Test_Genv_Set(t *testing.T) {
 	gtest.Case(t, func() {
-		key := "TEST_ENV"
+		key := "TEST_SET_ENV"
 		err := genv.Set(key, "TEST")
 		gtest.Assert(err, nil)
 		gtest.AssertEQ(os.Getenv(key), "TEST")
@@ -33,7 +33,7 @@ func Test_Genv_Set(t *testing.T) {
 
 func Test_Genv_Remove(t *testing.T) {
 	gtest.Case(t, func() {
-		key := "TEST_ENV"
+		key := "TEST_REMOVE_ENV"
 		err := os.Setenv(key, "TEST")
 		gtest.Assert(err, nil)
 		err = genv.Remove(key)