diff --git a/internal/indexnode/indexnode_test.go b/internal/indexnode/indexnode_test.go
index 72a93c6d5f..dac97e7bd2 100644
--- a/internal/indexnode/indexnode_test.go
+++ b/internal/indexnode/indexnode_test.go
@@ -443,6 +443,8 @@ func TestIndexNode(t *testing.T) {
 			zap.String("resp", resp.Response),
 			zap.String("name", resp.ComponentName))
 	})
+	err = in.etcdKV.RemoveWithPrefix("session/IndexNode")
+	assert.Nil(t, err)
 
 	err = in.Stop()
 	assert.Nil(t, err)
@@ -718,6 +720,9 @@ func TestCreateIndexFailed(t *testing.T) {
 		assert.Equal(t, commonpb.ErrorCode_UnexpectedError, status.ErrorCode)
 	})
 
+	err = in.etcdKV.RemoveWithPrefix("session/IndexNode")
+	assert.Nil(t, err)
+
 	err = in.Stop()
 	assert.Nil(t, err)
 }
@@ -767,6 +772,9 @@ func TestIndexNode_Error(t *testing.T) {
 		assert.Equal(t, commonpb.ErrorCode_UnexpectedError, resp.Status.ErrorCode)
 	})
 
+	err = in.etcdKV.RemoveWithPrefix("session/IndexNode")
+	assert.Nil(t, err)
+
 	err = in.Stop()
 	assert.Nil(t, err)
 }