diff --git a/examples/arduino/w5500-http/mongoose_config.h b/examples/arduino/w5500-http/mongoose_config.h
index 5dec7d0a..dc8f7b61 100644
--- a/examples/arduino/w5500-http/mongoose_config.h
+++ b/examples/arduino/w5500-http/mongoose_config.h
@@ -11,6 +11,7 @@
 #define MG_ENABLE_SOCKET 0
 #define MG_ENABLE_TCPIP 1
 #define MG_ENABLE_DRIVER_W5500 1
+#define MG_ENABLE_TCPIP_DRIVER_INIT 0
 #define mkdir(a, b) (-1)
 #define MG_IO_SIZE 128
 //#define MG_ENABLE_LOG 0
diff --git a/examples/arduino/w5500-mqtt/mongoose_config.h b/examples/arduino/w5500-mqtt/mongoose_config.h
index 5abe0440..2a74d06b 100644
--- a/examples/arduino/w5500-mqtt/mongoose_config.h
+++ b/examples/arduino/w5500-mqtt/mongoose_config.h
@@ -11,6 +11,7 @@
 #define MG_ENABLE_SOCKET 0
 #define MG_ENABLE_TCPIP 1
 #define MG_ENABLE_DRIVER_W5500 1
+#define MG_ENABLE_TCPIP_DRIVER_INIT 0
 #define mkdir(a, b) (-1)
 #define MG_IO_SIZE 512
 //#define MG_ENABLE_LOG 0
diff --git a/mongoose.h b/mongoose.h
index 5a68c8d9..3b137349 100644
--- a/mongoose.h
+++ b/mongoose.h
@@ -3053,9 +3053,6 @@ struct mg_tcpip_driver_tm4c_data {
 
 #if MG_ENABLE_TCPIP && defined(MG_ENABLE_DRIVER_W5500) && MG_ENABLE_DRIVER_W5500
 
-#undef MG_ENABLE_TCPIP_DRIVER_INIT
-#define MG_ENABLE_TCPIP_DRIVER_INIT 0
-
 #endif