diff --git a/graph_test.go b/graph_test.go
index 080e51c..a9b2ee6 100644
--- a/graph_test.go
+++ b/graph_test.go
@@ -163,7 +163,6 @@ func TestLockResource(t * testing.T) {
 
   r1_l := r1.UpdateChannel()
 
-  // Lock r3(so also r1&r2)
   err := r3.Lock()
   if err != nil {
     t.Fatal("Failed to lock r3")