diff --git a/PhysicsTools/MXNet/src/MXNetPredictor.cc b/PhysicsTools/MXNet/src/MXNetPredictor.cc
index 61b0a4f3dd410..29604decfa6c2 100644
--- a/PhysicsTools/MXNet/src/MXNetPredictor.cc
+++ b/PhysicsTools/MXNet/src/MXNetPredictor.cc
@@ -102,7 +102,7 @@ std::vector<float> MXNetPredictor::predict(const std::vector<std::vector<mx_floa
     throw cms::Exception("RuntimeError") << "Error running forward!";
   }
 
-  mx_uint *shape = 0;
+  mx_uint *shape = nullptr;
   mx_uint shape_len = 0;
 
   // Get Output Result
diff --git a/RecoBTag/DeepBoostedJet/plugins/DeepBoostedJetTagInfoProducer.cc b/RecoBTag/DeepBoostedJet/plugins/DeepBoostedJetTagInfoProducer.cc
index 6e174bc2d3c76..dc21e0ac1813c 100644
--- a/RecoBTag/DeepBoostedJet/plugins/DeepBoostedJetTagInfoProducer.cc
+++ b/RecoBTag/DeepBoostedJet/plugins/DeepBoostedJetTagInfoProducer.cc
@@ -418,7 +418,7 @@ void DeepBoostedJetTagInfoProducer::fillParticleFeatures(DeepBoostedJetFeatures
       }
     }
 
-    fts.fill("pfcand_drsubjet1", subjets.size()>0 ? reco::deltaR(*cand, *subjets.at(0)) : -1);
+    fts.fill("pfcand_drsubjet1", !subjets.empty() ? reco::deltaR(*cand, *subjets.at(0)) : -1);
     fts.fill("pfcand_drsubjet2", subjets.size()>1 ? reco::deltaR(*cand, *subjets.at(1)) : -1);
 
     const reco::Track *trk = nullptr;