diff --git a/graph_test.go b/graph_test.go
index ffb36cb..b81b9bb 100644
--- a/graph_test.go
+++ b/graph_test.go
@@ -148,7 +148,7 @@ func TestStateMachine_ToGraph(t *testing.T) {
 					t.Fatal(err)
 				}
 				if !bytes.Equal([]byte(got), want) {
-					t.Fatalf("got: %s\nwant: %s", got, want)
+					t.Fatalf("got:\n%swant:\n%s", got, want)
 				}
 			}
 		})