diff --git a/cores/esp32/IPAddress.cpp b/cores/esp32/IPAddress.cpp
index b4fc4c3f7e0..128efaf9269 100644
--- a/cores/esp32/IPAddress.cpp
+++ b/cores/esp32/IPAddress.cpp
@@ -411,4 +411,6 @@ esp_ip6_addr_type_t IPAddress::addr_type() const {
 }
 
 const IPAddress IN6ADDR_ANY(IPv6);
+#ifndef INADDR_NONE
 const IPAddress INADDR_NONE(0, 0, 0, 0);
+#endif
diff --git a/cores/esp32/IPAddress.h b/cores/esp32/IPAddress.h
index b88aeed3026..74a301da892 100644
--- a/cores/esp32/IPAddress.h
+++ b/cores/esp32/IPAddress.h
@@ -134,4 +134,6 @@ class IPAddress : public Printable {
 };
 
 extern const IPAddress IN6ADDR_ANY;
+#ifndef INADDR_NONE
 extern const IPAddress INADDR_NONE;
+#endif