diff --git a/ports/espressif/boards/adafruit_esp32s3_camera/mpconfigboard.h b/ports/espressif/boards/adafruit_esp32s3_camera/mpconfigboard.h
index daa9bc92e5..1e62da71c4 100644
--- a/ports/espressif/boards/adafruit_esp32s3_camera/mpconfigboard.h
+++ b/ports/espressif/boards/adafruit_esp32s3_camera/mpconfigboard.h
@@ -40,3 +40,5 @@
 #define DEFAULT_SPI_BUS_MISO (&pin_GPIO37)
 
 #define DOUBLE_TAP_PIN (&pin_GPIO42)
+
+#define DEFAULT_RESERVED_PSRAM      (1048576)