diff --git a/cores/arduino/NetClient.h b/cores/arduino/NetClient.h
index d8df914..ea64664 100644
--- a/cores/arduino/NetClient.h
+++ b/cores/arduino/NetClient.h
@@ -20,8 +20,6 @@ public:
   virtual void flush() = 0;
   virtual void stop() = 0;
   virtual uint8_t connected() = 0;
-  virtual uint8_t operator==(int) = 0;
-  virtual uint8_t operator!=(int) = 0;
   virtual operator bool() = 0;
 };
 
diff --git a/cores/arduino/NetServer.h b/cores/arduino/NetServer.h
new file mode 100644
index 0000000..91f4848
--- /dev/null
+++ b/cores/arduino/NetServer.h
@@ -0,0 +1,11 @@
+#ifndef netserver_h
+#define netserver_h
+
+class NetClient;
+
+class NetServer {
+public:
+  virtual void begin() =0;
+};
+
+#endif