diff --git a/makefiles/Makefile.csharp.mk b/makefiles/Makefile.csharp.mk
index f845508c29c..fccf33dec21 100755
--- a/makefiles/Makefile.csharp.mk
+++ b/makefiles/Makefile.csharp.mk
@@ -249,7 +249,7 @@ $(BIN_DIR)/$(CLR_ORTOOLS_DLL_NAME)$(DLL): \
 	$(GEN_DIR)/com/google/ortools/constraintsolver/RoutingEnums.g.cs\
 	$(OR_TOOLS_LIBS)
 ifeq ($(SYSTEM),win)
-	$(CSC) /target:module /out:$(LIB_DIR)$S$(LIB_PREFIX)$(CLR_ORTOOLS_DLL_NAME).netmodule /lib:$(BIN_DIR) /r:$(CLR_PROTOBUF_DLL_NAME)$(DLL) /warn:0 /nologo /debug $(GEN_DIR)\\com\\google\\ortools\\linearsolver\\*.cs $(SRC_DIR)\\com\\google\\ortools\\linearsolver\\*.cs $(GEN_DIR)\\com\\google\\ortools\\constraintsolver\\*.cs $(SRC_DIR)\\com\\google\\ortools\\constraintsolver\\*.cs $(GEN_DIR)\\com\\google\\ortools\\algorithms\\*.cs $(SRC_DIR)\\com\\google\\ortools\\algorithms\\*.cs $(GEN_DIR)\\com\\google\\ortools\\graph\\*.cs $(SRC_DIR)\\com\\google\\ortools\\util\\*.cs $(GEN_DIR)\\com\\google\\ortools\\properties\\*.cs
+	$(CSC) /target:module /out:$(LIB_DIR)$S$(LIB_PREFIX)$(CLR_ORTOOLS_DLL_NAME).netmodule /lib:$(BIN_DIR) /r:$(CLR_PROTOBUF_DLL_NAME)$(DLL) /warn:0 /nologo /debug $(GEN_DIR)\\com\\google\\ortools\\linearsolver\\*.cs $(SRC_DIR)\\ortools\\com\\google\\ortools\\linearsolver\\*.cs $(GEN_DIR)\\com\\google\\ortools\\constraintsolver\\*.cs $(SRC_DIR)\\ortools\\com\\google\\ortools\\constraintsolver\\*.cs $(GEN_DIR)\\com\\google\\ortools\\algorithms\\*.cs $(SRC_DIR)\\ortools\\com\\google\\ortools\\algorithms\\*.cs $(GEN_DIR)\\com\\google\\ortools\\graph\\*.cs $(SRC_DIR)\\ortools\\com\\google\\ortools\\util\\*.cs $(GEN_DIR)\\com\\google\\ortools\\properties\\*.cs
 	$(DYNAMIC_LD) $(SIGNING_FLAGS) $(LDOUT)$(BIN_DIR)$S$(CLR_ORTOOLS_DLL_NAME)$(DLL) $(LIB_DIR)$S$(LIB_PREFIX)$(CLR_ORTOOLS_DLL_NAME).netmodule $(OBJ_DIR)$Sswig$Slinear_solver_csharp_wrap.$O $(OBJ_DIR)$Sswig$Sconstraint_solver_csharp_wrap.$O $(OBJ_DIR)$Sswig$Sknapsack_solver_csharp_wrap.$O $(OBJ_DIR)$Sswig$Sgraph_csharp_wrap.$O $(OR_TOOLS_LNK) $(OR_TOOLS_LD_FLAGS)
 else
 	$(CSC) /target:library /out:$(BIN_DIR)/$(CLR_ORTOOLS_DLL_NAME)$(DLL) /lib:$(BIN_DIR) /r:$(CLR_PROTOBUF_DLL_NAME)$(DLL) /warn:0 /nologo /debug $(SRC_DIR)/ortools/com/google/ortools/util/*.cs $(GEN_DIR)/com/google/ortools/linearsolver/*.cs $(SRC_DIR)/ortools/com/google/ortools/linearsolver/*.cs $(GEN_DIR)/com/google/ortools/constraintsolver/*.cs $(SRC_DIR)/ortools/com/google/ortools/constraintsolver/*.cs $(SRC_DIR)/ortools/com/google/ortools/algorithms/*.cs $(GEN_DIR)/com/google/ortools/algorithms/*.cs $(GEN_DIR)/com/google/ortools/graph/*.cs $(GEN_DIR)/com/google/ortools/properties/*.cs