diff --git a/src/one-body-sample.cc b/src/one-body-sample.cc
index 76b6424bb6d90bf65cddadf4d5031b1232e8f601..bce61eb711795221d24fc4d0279766b4884b0af2 100644
--- a/src/one-body-sample.cc
+++ b/src/one-body-sample.cc
@@ -376,8 +376,8 @@ int main(int argc, char *argv[]) {
     auto const timesteps = parset.get<size_t>("timeSteps");
     auto const tau = parset.get<double>("endOfTime") / timesteps;
     auto const createRHS = [&](double _time, VectorType &_ell) {
-      assemble_neumann<GridType, GridView, SmallVector>(
-          leafView, p1Assembler, neumannNodes, _ell, neumannFunction, _time);
+      assemble_neumann<GridType>(leafView, p1Assembler, neumannNodes, _ell,
+                                 neumannFunction, _time);
       _ell += gravityFunctional;
     };