diff --git a/csharp/Makefile b/csharp/Makefile
new file mode 100644
index 00000000..4f893386
--- /dev/null
+++ b/csharp/Makefile
@@ -0,0 +1,21 @@
+TARGET=msgpack.dll
+TEST_TARGET=msgpack.tests.dll
+
+SRC=$(shell find msgpack -name "*.cs")
+TEST_SRC=$(shell find msgpack.tests -name "*.cs")
+
+MONO_CC=mcs
+NUNIT_CONSOLE=nunit-console
+
+all: $(TARGET)
+test: $(TEST_TARGET) $(TARGET)
+clean:
+	rm -f $(TARGET) $(TEST_TARGET)
+run-test:
+	$(NUNIT_CONSOLE) $(TEST_TARGET)
+
+$(TARGET): $(SRC)
+	$(MONO_CC) -out:$@  -t:library -unsafe+ $^
+
+$(TEST_TARGET): $(TEST_SRC)
+	$(MONO_CC) -out:$@  -t:library -r:$(TARGET) -r:nunit.framework.dll $^