diff --git a/examples/dotnet/csknapsack.cs b/examples/dotnet/csknapsack.cs
index 9ec809aaf6..445aa24dda 100644
--- a/examples/dotnet/csknapsack.cs
+++ b/examples/dotnet/csknapsack.cs
@@ -19,7 +19,7 @@ public class CsKnapsack
   static void Main()
   {
     KnapsackSolver solver = new KnapsackSolver(
-        KnapsackSolver.KNAPSACK_MULTIDIMENSION_BRANCH_AND_BOUND_SOLVER, "test");
+        KnapsackSolver.SolverType.KNAPSACK_MULTIDIMENSION_BRANCH_AND_BOUND_SOLVER, "test");
     long[] profits = { 360, 83, 59, 130, 431, 67, 230, 52, 93,
                        125, 670, 892, 600, 38, 48, 147, 78, 256,
                        63, 17, 120, 164, 432, 35, 92, 110, 22,