diff --git a/src/test/java/pacmanTests/GameManagerTest.java b/src/test/java/pacmanTests/GameManagerTest.java
index 175852b..28e4932 100644
--- a/src/test/java/pacmanTests/GameManagerTest.java
+++ b/src/test/java/pacmanTests/GameManagerTest.java
@@ -34,6 +34,7 @@ class GameManagerTest {
 		// arrange
 
 		GameManager gameManager = new GameManager();
+		gameManager.visualizer = new VisualizerPlainText(gameManager);
 		VisualizerPlainText vpt = (VisualizerPlainText) gameManager.visualizer;
 		
 		// act