diff --git a/Tests/NumLib/ODEs.h b/Tests/NumLib/ODEs.h
index fbe3f27156363517a9fefb610f3f415184be8300..34623754338ba49bc3f6621260965f7054309724 100644
--- a/Tests/NumLib/ODEs.h
+++ b/Tests/NumLib/ODEs.h
@@ -26,7 +26,7 @@ class ODE1 final : public NumLib::ODESystem<
                        NumLib::NonlinearSolverTag::Newton>
 {
 public:
-    void preAssemble(const double t, GlobalVector const& x) override {}
+    void preAssemble(const double /*t*/, GlobalVector const& /*x*/) override {}
 
     void assemble(const double /*t*/, GlobalVector const& /*x*/,
                   GlobalMatrix& M, GlobalMatrix& K, GlobalVector& b) override
@@ -104,7 +104,7 @@ class ODE2 final : public NumLib::ODESystem<
                        NumLib::NonlinearSolverTag::Newton>
 {
 public:
-    void preAssemble(const double t, GlobalVector const& x) override {}
+    void preAssemble(const double /*t*/, GlobalVector const& /*x*/) override {}
 
     void assemble(const double /*t*/, GlobalVector const& x, GlobalMatrix& M,
                   GlobalMatrix& K, GlobalVector& b) override
@@ -191,7 +191,7 @@ class ODE3 final : public NumLib::ODESystem<
                        NumLib::NonlinearSolverTag::Newton>
 {
 public:
-    void preAssemble(const double t, GlobalVector const& x) override {}
+    void preAssemble(const double /*t*/, GlobalVector const& /*x*/) override {}
 
     void assemble(const double /*t*/, GlobalVector const& x_curr, GlobalMatrix& M,
                   GlobalMatrix& K, GlobalVector& b) override