diff --git a/makefiles/Makefile.dotnet.mk b/makefiles/Makefile.dotnet.mk
index e6d529fa4c..7ff6558e32 100644
--- a/makefiles/Makefile.dotnet.mk
+++ b/makefiles/Makefile.dotnet.mk
@@ -322,7 +322,11 @@ $(DOTNET_ORTOOLS_NATIVE_NUPKG): \
  $(SRC_DIR)/ortools/linear_solver/csharp/LinearConstraint.cs \
  $(SRC_DIR)/ortools/linear_solver/csharp/SolverHelper.cs \
  $(SRC_DIR)/ortools/linear_solver/csharp/VariableHelper.cs \
+ $(SRC_DIR)/ortools/sat/csharp/Constraints.cs \
  $(SRC_DIR)/ortools/sat/csharp/CpModel.cs \
+ $(SRC_DIR)/ortools/sat/csharp/CpSolver.cs \
+ $(SRC_DIR)/ortools/sat/csharp/IntegerExpressions.cs \
+ $(SRC_DIR)/ortools/sat/csharp/IntervalVariables.cs \
  $(SRC_DIR)/ortools/util/csharp/NestedArrayHelper.cs \
  $(SRC_DIR)/ortools/util/csharp/ProtoHelper.cs \
  $(GEN_DIR)/ortools/constraint_solver/SearchLimit.pb.cs \