diff --git a/src/Init/ChemistryInit.cpp b/src/Init/ChemistryInit.cpp
index c1f884fa2..e5f59380e 100644
--- a/src/Init/ChemistryInit.cpp
+++ b/src/Init/ChemistryInit.cpp
@@ -6,6 +6,8 @@
 namespace poet {
 
 void InitialList::initChemistry(const Rcpp::List &chem) {
+  this->pqc_sol_order = this->transport_names;
+
   if (chem.containsElementNamed("dht_species")) {
     this->dht_species = Rcpp::as<NamedVector<uint32_t>>(chem["dht_species"]);
   }
diff --git a/src/Init/GridInit.cpp b/src/Init/GridInit.cpp
index 29f9c9d48..a35295769 100644
--- a/src/Init/GridInit.cpp
+++ b/src/Init/GridInit.cpp
@@ -165,7 +165,7 @@ void InitialList::prepareGrid(const Rcpp::List &grid_input) {
   std::vector<std::string> colnames =
       Rcpp::as<std::vector<std::string>>(this->initial_grid.names());
 
-  this->transport_names = this->pqc_sol_order = std::vector<std::string>(
+  this->transport_names = std::vector<std::string>(
       colnames.begin() + 1,
       colnames.begin() + 1 + solution_count); // skip ID