diff --git a/barrier_node/barrier_node.ino b/barrier_node/barrier_node.ino
index 33c61d1..c64eb1a 100644
--- a/barrier_node/barrier_node.ino
+++ b/barrier_node/barrier_node.ino
@@ -9,7 +9,7 @@
 #include <WebServer.h>
 #include <Update.h>
 
-#define RELAY_PIN 15
+#define RELAY_PIN 4
 
 #define ETH_POWER_PIN  16
 #define ETH_MDC_PIN    23