diff --git a/ProcessLib/GroundwaterFlowProcess.h b/ProcessLib/GroundwaterFlowProcess.h
index b8f2e704a6ab34b23aa9dd2868dbeacb0fb17108..482c4b8534cc8793201707df825d16891d8ea009 100644
--- a/ProcessLib/GroundwaterFlowProcess.h
+++ b/ProcessLib/GroundwaterFlowProcess.h
@@ -346,7 +346,6 @@ public:
         _x->getGlobalVector(u.get());  // get the global solution
 
         std::size_t const n = _mesh.getNNodes();
-        result->resize(n);
         for (std::size_t i = 0; i < n; ++i)
         {
             MeshLib::Location const l(_mesh.getID(),