diff --git a/ports/espressif/boards/adafruit_qtpy_esp32c3/mpconfigboard.h b/ports/espressif/boards/adafruit_qtpy_esp32c3/mpconfigboard.h
index 8fbdd1713e61b..d3df85d1ed248 100644
--- a/ports/espressif/boards/adafruit_qtpy_esp32c3/mpconfigboard.h
+++ b/ports/espressif/boards/adafruit_qtpy_esp32c3/mpconfigboard.h
@@ -25,3 +25,6 @@
 
 // For entering safe mode
 #define CIRCUITPY_BOOT_BUTTON       (&pin_GPIO9)
+
+// Reduce wifi.radio.tx_power due to the antenna design of this board
+#define CIRCUITPY_WIFI_DEFAULT_TX_POWER   (15)