diff --git a/src/system.cpp b/src/system.cpp
index 5f00160ff..4c2608b93 100644
--- a/src/system.cpp
+++ b/src/system.cpp
@@ -195,7 +195,7 @@ void System::wifi_tweak() {
     // WIFI_POWER_2dBm = 8,// 2dBm
     // WIFI_POWER_MINUS_1dBm = -4// -1dBm
     wifi_power_t p1  = WiFi.getTxPower();
-    bool         pok = WiFi.setTxPower(WIFI_POWER_19_5dBm);
+    (void) WiFi.setTxPower(WIFI_POWER_19_5dBm);
     wifi_power_t p2  = WiFi.getTxPower();
     bool         s1  = WiFi.getSleep();
     WiFi.setSleep(false); // turn off sleep - WIFI_PS_NONE