diff --git a/ortools/sat/samples/BinPackingProblemSat.cs b/ortools/sat/samples/BinPackingProblemSat.cs
index 56dbc6670b..95d01a41d9 100644
--- a/ortools/sat/samples/BinPackingProblemSat.cs
+++ b/ortools/sat/samples/BinPackingProblemSat.cs
@@ -67,7 +67,7 @@ public class BinPackingProblemSat
       {
         tmp[i] = x[i, b];
       }
-      model.Add(load[b] == LinearExpr.ScalProd(tmp, sizes);
+      model.Add(load[b] == LinearExpr.ScalProd(tmp, sizes));
     }
 
     // Place all items.