diff --git a/autofit/example/analysis.py b/autofit/example/analysis.py
index 677e2f08c..8ed8a5ffd 100644
--- a/autofit/example/analysis.py
+++ b/autofit/example/analysis.py
@@ -109,7 +109,7 @@ def model_data_1d_from(self, instance: af.ModelInstance) -> np.ndarray:
                 except AttributeError:
                     pass
         except TypeError:
-            model_data_1d += instance.model_data_from(xvalues=xvalues)
+            model_data_1d += instance.model_data_from(xvalues=xvalues, xp=self._xp)
 
         return model_data_1d