diff --git a/gtsam/nonlinear/NonlinearOptimizationParameters.h b/gtsam/nonlinear/NonlinearOptimizationParameters.h
index 3015e406f..9e3c19bfc 100644
--- a/gtsam/nonlinear/NonlinearOptimizationParameters.h
+++ b/gtsam/nonlinear/NonlinearOptimizationParameters.h
@@ -43,7 +43,7 @@ namespace gtsam {
 		double absDecrease_; /* threshold for the absolute decrease per iteration */
 		double relDecrease_; /* threshold for the relative decrease per iteration */
 		double sumError_; /* threshold for the sum of error */
-		int maxIterations_ ;
+		size_t maxIterations_ ;
 		double lambda_ ;
 		double lambdaFactor_ ;
 		verbosityLevel verbosity_;
diff --git a/gtsam/nonlinear/NonlinearOptimizer-inl.h b/gtsam/nonlinear/NonlinearOptimizer-inl.h
index 5ac5431a0..7cb0e6ae1 100644
--- a/gtsam/nonlinear/NonlinearOptimizer-inl.h
+++ b/gtsam/nonlinear/NonlinearOptimizer-inl.h
@@ -37,8 +37,8 @@ namespace gtsam {
 	template<class G, class C, class L, class S, class W>
 	NonlinearOptimizer<G, C, L, S, W>::NonlinearOptimizer(shared_graph graph,
 			shared_values values, shared_ordering ordering, shared_parameters parameters) :
-			graph_(graph), values_(values), iterations_(0), error_(graph->error(*values)),
-			ordering_(ordering), parameters_(parameters), dimensions_(new vector<size_t>(values->dims(*ordering))) {
+			graph_(graph), values_(values), error_(graph->error(*values)), ordering_(ordering),
+			parameters_(parameters), iterations_(0), dimensions_(new vector<size_t>(values->dims(*ordering))) {
 		if (!graph) throw std::invalid_argument(
 				"NonlinearOptimizer constructor: graph = NULL");
 		if (!values) throw std::invalid_argument(
@@ -54,8 +54,8 @@ namespace gtsam {
 			shared_ordering ordering,
 			shared_solver solver,
 			shared_parameters parameters):
-			graph_(graph), values_(values), iterations_(0), error_(graph->error(*values)), ordering_(ordering), solver_(solver),
-			parameters_(parameters), dimensions_(new vector<size_t>(values->dims(*ordering))) {
+			graph_(graph), values_(values), error_(graph->error(*values)), ordering_(ordering), solver_(solver),
+			parameters_(parameters), iterations_(0), dimensions_(new vector<size_t>(values->dims(*ordering))) {
 		if (!graph) throw std::invalid_argument(
 				"NonlinearOptimizer constructor: graph = NULL");
 		if (!values) throw std::invalid_argument(
diff --git a/gtsam/nonlinear/NonlinearOptimizer.h b/gtsam/nonlinear/NonlinearOptimizer.h
index 31aa34cb0..eed5c9a4e 100644
--- a/gtsam/nonlinear/NonlinearOptimizer.h
+++ b/gtsam/nonlinear/NonlinearOptimizer.h
@@ -181,8 +181,9 @@ namespace gtsam {
 //		  ordering_(optimizer.ordering_), solver_(optimizer.solver_), lambda_(optimizer.lambda_), dimensions_(optimizer.dimensions_) {}
 
 		NonlinearOptimizer(const NonlinearOptimizer<G, T, L, GS> &optimizer) :
-		  graph_(optimizer.graph_), values_(optimizer.values_), iterations_(0), error_(optimizer.error_),
-		  ordering_(optimizer.ordering_), solver_(optimizer.solver_), parameters_(optimizer.parameters_), dimensions_(optimizer.dimensions_) {}
+		  graph_(optimizer.graph_), values_(optimizer.values_), error_(optimizer.error_),
+		  ordering_(optimizer.ordering_), solver_(optimizer.solver_),
+		  parameters_(optimizer.parameters_), iterations_(0), dimensions_(optimizer.dimensions_) {}
 
 		/**
 		 * Return current error