diff --git a/Tester3D.java b/Tester3D.java
index ce3f3d4..bf5fc33 100644
--- a/Tester3D.java
+++ b/Tester3D.java
@@ -75,6 +75,7 @@ class Tester3D {
         }
         catch(Exception e) {
             System.out.print("Whoops! It didn't work!\n");
+            System.exit(1);
         }
     }