diff --git a/opm/simulators/flow/BlackoilModelEbos.hpp b/opm/simulators/flow/BlackoilModelEbos.hpp
index 3eb5a1fb3..d2706f766 100644
--- a/opm/simulators/flow/BlackoilModelEbos.hpp
+++ b/opm/simulators/flow/BlackoilModelEbos.hpp
@@ -1114,7 +1114,7 @@ namespace Opm {
 
         template<class G, class T>
         typename std::enable_if<!std::is_same<G,Dune::CpGrid>::value, bool>::type
-        isNumericalAquiferCell(const G& grid, const T& elem)
+        isNumericalAquiferCell(const G&, const T&)
         {
             return false;
         }
diff --git a/opm/simulators/linalg/bda/opencl/Preconditioner.hpp b/opm/simulators/linalg/bda/opencl/Preconditioner.hpp
index f0af75d25..8c3c1da21 100644
--- a/opm/simulators/linalg/bda/opencl/Preconditioner.hpp
+++ b/opm/simulators/linalg/bda/opencl/Preconditioner.hpp
@@ -60,6 +60,8 @@ public:
 
     static std::unique_ptr<Preconditioner> create(PreconditionerType type, int verbosity, ILUReorder opencl_ilu_reorder);
 
+    virtual ~Preconditioner() = default;
+
     // nested Preconditioners might need to override this
     virtual void setOpencl(std::shared_ptr<cl::Context>& context, std::shared_ptr<cl::CommandQueue>& queue);
 
diff --git a/opm/simulators/wells/BlackoilWellModelGeneric.cpp b/opm/simulators/wells/BlackoilWellModelGeneric.cpp
index 011547eb4..294f4834d 100644
--- a/opm/simulators/wells/BlackoilWellModelGeneric.cpp
+++ b/opm/simulators/wells/BlackoilWellModelGeneric.cpp
@@ -2390,14 +2390,14 @@ guideRateUpdateIsNeeded(const int reportStepIdx) const {
     });
     if (!need_update && this->report_step_starts_) {
         const auto& events = this->schedule()[reportStepIdx].wellgroup_events();
-        const auto effective_events_mask = ScheduleEvents::WELL_STATUS_CHANGE
+        constexpr auto effective_events_mask = ScheduleEvents::WELL_STATUS_CHANGE
             + ScheduleEvents::INJECTION_TYPE_CHANGED
             + ScheduleEvents::WELL_SWITCHED_INJECTOR_PRODUCER
             + ScheduleEvents::NEW_WELL;
 
         need_update = std::any_of(this->well_container_generic_.begin(),
                               this->well_container_generic_.end(),
-            [&events, effective_events_mask](const WellInterfaceGeneric* well)
+            [&events](const WellInterfaceGeneric* well)
         {
             return events.hasEvent(well->name(), effective_events_mask);
         });