diff --git a/tools/Makefile.cc.java.dotnet b/tools/Makefile.cc.java.dotnet
index 2b4b29a9fa..b72d681126 100644
--- a/tools/Makefile.cc.java.dotnet
+++ b/tools/Makefile.cc.java.dotnet
@@ -143,7 +143,8 @@ ifeq ($(SYSTEM),win)
   CXX_BIN := $(shell $(WHICH) $(CXX) 2> NUL)
   DEBUG = /O2 -DNDEBUG
   CXXFLAGS = /EHsc /MD /nologo /D_SILENCE_STDEXT_HASH_DEPRECATION_WARNINGS -nologo $(DEBUG) \
-    /D__WIN32__ /DGFLAGS_DLL_DECL= /DGFLAGS_DLL_DECLARE_FLAG= /DGFLAGS_DLL_DEFINE_FLAG= \
+    /D__WIN32__ /DNOMINMAX /DWIN32_LEAN_AND_MEAN=1 /D_CRT_SECURE_NO_WARNINGS \
+    /DGFLAGS_DLL_DECL= /DGFLAGS_DLL_DECLARE_FLAG= /DGFLAGS_DLL_DEFINE_FLAG= \
     /I$(INC_DIR)\\src\\windows /I$(INC_DIR) /I. \
     -DUSE_CBC -DUSE_CLP -DUSE_BOP -DUSE_GLOP
   LDFLAGS = psapi.lib ws2_32.lib