diff --git a/Tests/MultiBlock/Advection/main.cpp b/Tests/MultiBlock/Advection/main.cpp
index 74418ef9efc..96e1fb9a3a5 100644
--- a/Tests/MultiBlock/Advection/main.cpp
+++ b/Tests/MultiBlock/Advection/main.cpp
@@ -186,6 +186,7 @@ struct FillBoundaryFn {
         core_x.mass.FillBoundary(core_x.Geom(coarsest_level).periodicity());
         core_y.mass.FillBoundary(core_y.Geom(coarsest_level).periodicity());
         std::vector<CommHandler> comms;
+        comms.reserve(boundaries.size());
         for (auto& boundary : boundaries) {
             comms.push_back(boundary.FillBoundary_nowait());
         }
diff --git a/Tests/openPMDTests/fields/main.cpp b/Tests/openPMDTests/fields/main.cpp
index 63dd1f843ae..d9a48b8def3 100644
--- a/Tests/openPMDTests/fields/main.cpp
+++ b/Tests/openPMDTests/fields/main.cpp
@@ -52,8 +52,6 @@ struct TestField
 {
   TestField(const InputParams& inputs)
   {
-    m_Time = 0.0;
-
     const int nghost = 0;
 
     Vector<Box> domains;
@@ -99,14 +97,14 @@ struct TestField
   Vector<int> m_Level_steps;
 
   Vector<std::string> m_Varnames;
-  Real m_Time;
+  Real m_Time = Real(0.0);
   Vector<IntVect> m_Ref_ratio;
   Vector<Geometry> m_Geom;
   Vector<std::unique_ptr<MultiFab> > m_mf;
 };
 
 
-void saveFile(char* fname,  const InputParams& inputs, const TestField& testField)
+void saveFile(char* const fname,  const InputParams& inputs, const TestField& testField)
 {
 #ifdef AMREX_USE_OPENPMD_API
   openpmd_api::InitHandler(fname);