diff --git a/src/BatchMode.cpp b/src/BatchMode.cpp
index d99d76e4..1d9a88ac 100644
--- a/src/BatchMode.cpp
+++ b/src/BatchMode.cpp
@@ -4955,7 +4955,7 @@ void setUpSpeciesTrait(vector<string> parameters) {
 	const bool isOutput = parameters[14] == "TRUE";
 
 	// Create species trait
-	SpeciesTrait* trait = new SpeciesTrait(
+	unique_ptr<SpeciesTrait> trait(new SpeciesTrait(
 		traitType, sex, 
 		positions, expressionType, 
 		initDist, initParams, 
@@ -4964,7 +4964,7 @@ void setUpSpeciesTrait(vector<string> parameters) {
 		mutationDistribution, mutationParameters,
 		ploidy,
 		isOutput
-	);
+	));
 	pSpecies->addTrait(traitType, *trait);
 }
 
@@ -6478,7 +6478,7 @@ void RunBatch(int nSimuls, int nLandscapes)
 	bool params_ok;
 	simParams sim = paramsSim->getSim();
 
-	Landscape* pLandscape = NULL;  		// pointer to landscape
+	Landscape* pLandscape = nullptr;  		// pointer to landscape
 
 	t0 = (int)time(0);
 
@@ -6503,7 +6503,7 @@ void RunBatch(int nSimuls, int nLandscapes)
 
 	for (int j = 0; j < nLandscapes; j++) {
 		// create new landscape
-		if (pLandscape != NULL) delete pLandscape;
+		if (pLandscape != nullptr) delete pLandscape;
 		pLandscape = new Landscape;
 		bool landOK = true;
 
@@ -6698,10 +6698,10 @@ void RunBatch(int nSimuls, int nLandscapes)
 				ifsTraits.clear();
 			}
 
-			if (pLandscape != NULL)
+			if (pLandscape != nullptr)
 			{
 				delete pLandscape; 
-				pLandscape = NULL;
+				pLandscape = nullptr;
 			}
 
 		} // end of landOK condition
diff --git a/src/RScore/Cell.cpp b/src/RScore/Cell.cpp
index 85fa78ce..7f1e5660 100644
--- a/src/RScore/Cell.cpp
+++ b/src/RScore/Cell.cpp
@@ -182,7 +182,9 @@ unsigned long int Cell::getVisits(void) { return visits; }
 // Initial species distribution cell functions
 
 DistCell::DistCell(int xx, int yy) {
-	x = xx; y = yy; initialise = false;
+	x = xx; 
+	y = yy; 
+	initialise = false;
 }
 
 DistCell::~DistCell() {
@@ -201,7 +203,10 @@ bool DistCell::toInitialise(locn loc) {
 bool DistCell::selected(void) { return initialise; }
 
 locn DistCell::getLocn(void) {
-	locn loc; loc.x = x; loc.y = y; return loc;
+	locn loc; 
+	loc.x = x; 
+	loc.y = y; 
+	return loc;
 }
 
 //---------------------------------------------------------------------------