diff --git a/bug/operations/create_test.go b/bug/operations/create_test.go
index 11b907c8952365e2dae9bc9696f6c0275152c821..a20472d3dfd3f2f921f8108b85d1497f2f5dff1f 100644
--- a/bug/operations/create_test.go
+++ b/bug/operations/create_test.go
@@ -14,7 +14,7 @@ func TestCreate(t *testing.T) {
 		Email: "rene@descartes.fr",
 	}
 
-	create := NewCreateOp(rene, "title", "message")
+	create := NewCreateOp(rene, "title", "message", nil)
 
 	snapshot = create.Apply(snapshot)
 
diff --git a/tests/operation_iterator_test.go b/tests/operation_iterator_test.go
index a03553dcc83ad80dddf75d037848f314d3871f80..d40d4bae0b247101190d955a0f13363ae33e24c9 100644
--- a/tests/operation_iterator_test.go
+++ b/tests/operation_iterator_test.go
@@ -13,9 +13,9 @@ var (
 		Email: "rene@descartes.fr",
 	}
 
-	createOp      = operations.NewCreateOp(rene, "title", "message")
+	createOp      = operations.NewCreateOp(rene, "title", "message", nil)
 	setTitleOp    = operations.NewSetTitleOp(rene, "title2")
-	addCommentOp  = operations.NewAddCommentOp(rene, "message2")
+	addCommentOp  = operations.NewAddCommentOp(rene, "message2", nil)
 	setStatusOp   = operations.NewSetStatusOp(rene, bug.ClosedStatus)
 	labelChangeOp = operations.NewLabelChangeOperation(rene, []bug.Label{"added"}, []bug.Label{"removed"})
 	mockRepo      = repository.NewMockRepoForTest()