diff --git a/src/mesh.cpp b/src/mesh.cpp
index a1818ed845..773c5bf369 100644
--- a/src/mesh.cpp
+++ b/src/mesh.cpp
@@ -1630,7 +1630,7 @@ void
 MOABMesh::create_interface()
 {
   // Do not create a MOAB instance if one is already in memory
-  if(mbi_ == nullptr){
+  if (!mbi_) {
     // create MOAB instance
     mbi_ = std::make_shared<moab::Core>();
 
diff --git a/tests/regression_tests/external_moab/main.cpp b/tests/regression_tests/external_moab/main.cpp
index 813592e6a7..3d867622d8 100644
--- a/tests/regression_tests/external_moab/main.cpp
+++ b/tests/regression_tests/external_moab/main.cpp
@@ -58,7 +58,7 @@ int main(int argc, char * argv[]){
   // Upcast pointer type
   MeshFilter* mesh_filter = dynamic_cast<MeshFilter*>(filter_ptr);
 
-  if(mesh_filter == nullptr){
+  if (!mesh_filter) {
     fatal_error("Failed to create mesh filter");
   }