diff --git a/boards/tlora-t3s3-v1.json b/boards/tlora-t3s3-v1.json
index d073fc7c..c5a68981 100644
--- a/boards/tlora-t3s3-v1.json
+++ b/boards/tlora-t3s3-v1.json
@@ -9,7 +9,8 @@
       "-DARDUINO_USB_CDC_ON_BOOT=1",
       "-DARDUINO_USB_MODE=0",
       "-DARDUINO_RUNNING_CORE=1",
-      "-DARDUINO_EVENT_RUNNING_CORE=1"
+      "-DARDUINO_EVENT_RUNNING_CORE=1",
+      "-DBOARD_HAS_PSRAM"
     ],
     "f_cpu": "240000000L",
     "f_flash": "80000000L",