diff --git a/dumux/freeflow/navierstokes/momentum/fluxvariables.hh b/dumux/freeflow/navierstokes/momentum/fluxvariables.hh
index b7a9e1c24333bc3a6a43acca4360d5e3c53f0311..9778801800cd3d55033ca511665ea39ba6e9e447 100644
--- a/dumux/freeflow/navierstokes/momentum/fluxvariables.hh
+++ b/dumux/freeflow/navierstokes/momentum/fluxvariables.hh
@@ -316,7 +316,6 @@ public:
      */
     NumEqVector frontalAdvectiveMomentumFlux() const
     {
-        NumEqVector flux(0.0);
         const auto& scvf = this->scvFace();
         assert(scvf.isFrontal());
 
@@ -362,7 +361,6 @@ public:
      */
     NumEqVector lateralAdvectiveMomentumFlux() const
     {
-        NumEqVector flux(0.0);
         const auto& scvf = this->scvFace();
         assert(scvf.isLateral());
 
diff --git a/dumux/multidomain/boundary/stokesdarcy/couplingdata.hh b/dumux/multidomain/boundary/stokesdarcy/couplingdata.hh
index cc6a0d751fdf15d59f45198e68b8dada89475361..ef758dcf9894516258ac438946f47df868c6a959 100644
--- a/dumux/multidomain/boundary/stokesdarcy/couplingdata.hh
+++ b/dumux/multidomain/boundary/stokesdarcy/couplingdata.hh
@@ -718,7 +718,6 @@ public:
                                       const SubControlVolumeFace<darcyIdx>& scvf,
                                       const DiffusionCoefficientAveragingType diffCoeffAvgType = DiffusionCoefficientAveragingType::ffOnly) const
     {
-        NumEqVector flux(0.0);
         const auto& darcyContext = this->couplingManager().darcyCouplingContext(element, scvf);
         const auto& darcyVolVars = darcyElemVolVars[scvf.insideScvIdx()];
         const auto& stokesVolVars = darcyContext.volVars;
@@ -743,7 +742,6 @@ public:
                                       const SubControlVolumeFace<stokesIdx>& scvf,
                                       const DiffusionCoefficientAveragingType diffCoeffAvgType = DiffusionCoefficientAveragingType::ffOnly) const
     {
-        NumEqVector flux(0.0);
         const auto& stokesContext = this->couplingManager().stokesCouplingContext(element, scvf);
         const auto& stokesVolVars = stokesElemVolVars[scvf.insideScvIdx()];
         const auto& darcyVolVars = stokesContext.volVars;