diff --git a/v2rayN/v2rayN/Mode/ECoreType.cs b/v2rayN/v2rayN/Mode/ECoreType.cs
new file mode 100644
index 00000000..4049db06
--- /dev/null
+++ b/v2rayN/v2rayN/Mode/ECoreType.cs
@@ -0,0 +1,9 @@
+
+namespace v2rayN.Mode
+{
+    public enum ECoreType
+    {
+        v2fly_core = 1,
+        xray_core = 2
+    }
+}