diff --git a/minigrida/protocols/jurse2.py b/minigrida/protocols/jurse2.py
index 87908a0..58a9bea 100644
--- a/minigrida/protocols/jurse2.py
+++ b/minigrida/protocols/jurse2.py
@@ -100,7 +100,7 @@ class Jurse2(Protocol):
         return self._results
 
     def _run_metrics(self, classification, descriptors):
-        X, y_true, groups = descriptors
+        X, y_true, groups, Xn = descriptors
         y_pred = classification
 
         self._log.info('  - Scores')