diff --git a/opm/autodiff/FullyImplicitBlackoilSolver.cpp b/opm/autodiff/FullyImplicitBlackoilSolver.cpp
index 93f0b8124..f3f686712 100644
--- a/opm/autodiff/FullyImplicitBlackoilSolver.cpp
+++ b/opm/autodiff/FullyImplicitBlackoilSolver.cpp
@@ -210,7 +210,6 @@ namespace {
         , rq_    (fluid.numPhases())
         , phaseCondition_(grid.number_of_cells)
         , residual_ ( { std::vector<ADB>(fluid.numPhases(), ADB::null()),
-                        ADB::null(),
                         ADB::null(),
                         ADB::null() } )
     {
@@ -1275,9 +1274,6 @@ namespace {
         {
             r = std::max(r, (*b).value().matrix().norm());
         }
-        if (active_[Oil] && active_[Gas]) {
-            r = std::max(r, residual_.rs_or_sg_eq.value().matrix().norm());
-        }
         r = std::max(r, residual_.well_flux_eq.value().matrix().norm());
         r = std::max(r, residual_.well_eq.value().matrix().norm());
 
diff --git a/opm/autodiff/FullyImplicitBlackoilSolver.hpp b/opm/autodiff/FullyImplicitBlackoilSolver.hpp
index 733b933fa..65d888026 100644
--- a/opm/autodiff/FullyImplicitBlackoilSolver.hpp
+++ b/opm/autodiff/FullyImplicitBlackoilSolver.hpp
@@ -141,7 +141,6 @@ namespace Opm {
         // The well_eq has size equal to the number of wells.
         struct {
             std::vector<ADB> mass_balance;
-            ADB rs_or_sg_eq; // Only used if both gas and oil present
             ADB well_flux_eq;
             ADB well_eq;
         } residual_;