diff --git a/examples/example_xyz.py b/examples/example_xyz.py
index 52a5b3b..04549be 100644
--- a/examples/example_xyz.py
+++ b/examples/example_xyz.py
@@ -11,7 +11,7 @@
 
 # set up the Countoscope
 countoscope = Countoscope(
-    trajectory_file  = 'trajectory2.xyz',
+    trajectory_file  = 'trajectory.xyz',
     box_size         = np.array([0.5, 0.5]),
     system_size      = np.array([10, 10]),
     symmetric_system = False,