diff --git a/Makefile b/Makefile
index 09eea7f..ff96e2b 100755
--- a/Makefile
+++ b/Makefile
@@ -45,6 +45,7 @@ CONFIG_TXPWR_BY_RATE = y
 CONFIG_TXPWR_BY_RATE_EN = n
 CONFIG_TXPWR_LIMIT = y
 CONFIG_TXPWR_LIMIT_EN = n
+CONFIG_CALIBRATE_TX_POWER_TO_MAX = y
 CONFIG_RTW_CHPLAN = 0xFF
 CONFIG_RTW_ADAPTIVITY_EN = disable
 CONFIG_RTW_ADAPTIVITY_MODE = normal