diff --git a/include/problem/MFEMProblem.h b/include/problem/MFEMProblem.h
index 21006d9a..03442324 100644
--- a/include/problem/MFEMProblem.h
+++ b/include/problem/MFEMProblem.h
@@ -25,9 +25,9 @@ class MFEMProblem : public ExternalProblem
   virtual ~MFEMProblem() {};
 
   virtual void initialSetup() override;
-  virtual void externalSolve() override {};
-  virtual bool nlConverged(const unsigned int nl_sys_num) override { return true; };
-  virtual void syncSolutions(Direction direction) override {};
+  virtual void externalSolve() override {}
+  virtual bool nlConverged(const unsigned int) override { return true; }
+  virtual void syncSolutions(Direction) override {}
 
   /**
    * Overwritten mesh() method from base MooseMesh to retrieve the correct mesh type, in this case
diff --git a/include/problem_operators/problem_operator.h b/include/problem_operators/problem_operator.h
index 18b333bf..ef3dd02a 100644
--- a/include/problem_operators/problem_operator.h
+++ b/include/problem_operators/problem_operator.h
@@ -15,7 +15,7 @@ class ProblemOperator : public mfem::Operator, public ProblemOperatorInterface
   void SetGridFunctions() override;
 
   virtual void Solve(mfem::Vector & X) {}
-  void Mult(const mfem::Vector & x, mfem::Vector & y) const override {}
+  void Mult(const mfem::Vector &, mfem::Vector &) const override {}
 };
 
 } // namespace platypus
diff --git a/include/problem_operators/time_domain_problem_operator.h b/include/problem_operators/time_domain_problem_operator.h
index cb1e30a2..e99576ea 100644
--- a/include/problem_operators/time_domain_problem_operator.h
+++ b/include/problem_operators/time_domain_problem_operator.h
@@ -18,7 +18,7 @@ class TimeDomainProblemOperator : public mfem::TimeDependentOperator,
 
   void SetGridFunctions() override;
 
-  void ImplicitSolve(const double dt, const mfem::Vector & X, mfem::Vector & dX_dt) override {}
+  void ImplicitSolve(const double, const mfem::Vector &, mfem::Vector &) override {}
 };
 
 } // namespace platypus