diff --git a/Framework/Cascade/Cascade.h b/Framework/Cascade/Cascade.h
index d83738c5e01bfff9ecd37bc93c9ff6ea213fac99..114c2149c6dc6844451aae1de759574ab7f470f4 100644
--- a/Framework/Cascade/Cascade.h
+++ b/Framework/Cascade/Cascade.h
@@ -145,8 +145,7 @@ namespace corsika::cascade {
       std::cout << "forced interaction!" << std::endl;
       auto vParticle = fStack.GetNextParticle();
       TStackView secondaries(vParticle);
-      auto projectile = secondaries.GetProjectile();
-      interaction(vParticle, projectile);
+      interaction(vParticle, secondaries);
       fProcessSequence.DoSecondaries(secondaries);
       vParticle.Delete(); // todo: this should be reviewed, see below
     }
diff --git a/Framework/Cascade/testCascade.cc b/Framework/Cascade/testCascade.cc
index 57f715ef5b0e6a71f541390e2fc96d49ebca9826..9db2c73ccba340df465f7ac75c518d163fef6cd2 100644
--- a/Framework/Cascade/testCascade.cc
+++ b/Framework/Cascade/testCascade.cc
@@ -69,18 +69,19 @@ public:
     return fX0;
   }
 
-  template <typename TProjectile>
-  corsika::process::EProcessReturn DoInteraction(TProjectile& vP) {
+  template <typename TSecondaryView>
+  corsika::process::EProcessReturn DoInteraction(TSecondaryView& view) {
     fCalls++;
-    const HEPEnergyType E = vP.GetEnergy();
-    vP.AddSecondary(
+    auto const projectile = view.GetProjectile();
+    const HEPEnergyType E = projectile.GetEnergy();
+    view.AddSecondary(
         std::tuple<particles::Code, units::si::HEPEnergyType,
                    corsika::stack::MomentumVector, geometry::Point, units::si::TimeType>{
-            vP.GetPID(), E / 2, vP.GetMomentum(), vP.GetPosition(), vP.GetTime()});
-    vP.AddSecondary(
+            projectile.GetPID(), E / 2, projectile.GetMomentum(), projectile.GetPosition(), projectile.GetTime()});
+    view.AddSecondary(
         std::tuple<particles::Code, units::si::HEPEnergyType,
                    corsika::stack::MomentumVector, geometry::Point, units::si::TimeType>{
-            vP.GetPID(), E / 2, vP.GetMomentum(), vP.GetPosition(), vP.GetTime()});
+            projectile.GetPID(), E / 2, projectile.GetMomentum(), projectile.GetPosition(), projectile.GetTime()});
     return EProcessReturn::eInteracted;
   }