diff --git a/src/Numerics/Optimization/BfgsMinimizer.cs b/src/Numerics/Optimization/BfgsMinimizer.cs
index 9b954b79..9e82f8e7 100644
--- a/src/Numerics/Optimization/BfgsMinimizer.cs
+++ b/src/Numerics/Optimization/BfgsMinimizer.cs
@@ -13,7 +13,7 @@ namespace MathNet.Numerics.Optimization
 		public double ParameterTolerance { get; set; }
         public int MaximumIterations { get; set; }
 
-        public BfgsMinimizer(double gradient_tolerance, double parameter_tolerance, int maximum_iterations)
+        public BfgsMinimizer(double gradient_tolerance, double parameter_tolerance, int maximum_iterations=1000)
         {
             this.GradientTolerance = gradient_tolerance;
 			this.ParameterTolerance = parameter_tolerance;