diff --git a/image_analysis/IndexAndRefine.cpp b/image_analysis/IndexAndRefine.cpp
index 3db59d91..781b42a8 100644
--- a/image_analysis/IndexAndRefine.cpp
+++ b/image_analysis/IndexAndRefine.cpp
@@ -152,7 +152,7 @@ void IndexAndRefine::QuickPredictAndIntegrate(DataMessage &msg,
             latt = outcome.lattice_candidate->Multiply(gon->GetTransformation(-msg.number));
     }
 
-    auto nrefl = prediction.Calc(experiment, latt, settings_prediction);
+    auto nrefl = prediction.Calc(outcome.experiment, latt, settings_prediction);
     auto refl_ret = BraggIntegrate2D(outcome.experiment, image, prediction.GetReflections(), nrefl, msg.number);
 
     constexpr size_t kMaxReflections = 10000;