diff --git a/Firmware/WLEDv15/platformio.ini b/Firmware/WLEDv15/platformio.ini
index f69202d..f2307e9 100644
--- a/Firmware/WLEDv15/platformio.ini
+++ b/Firmware/WLEDv15/platformio.ini
@@ -370,6 +370,7 @@ build_flags = ${common.build_flags} ${esp8266.build_flags}
   -D WLED_AP_SSID='"ShorktagramBadge"'
   -D SERVERNAME='"ShorktagramBadge"'
   -D WLED_DISABLE_PARTICLESYSTEM2D
+  -D PIR_SENSOR_PIN=13
 lib_deps = ${esp8266.lib_deps}
 monitor_filters = esp8266_exception_decoder
 custom_usermods = BME280_v2 PIR_sensor_switch