diff --git a/services/URIBeaconConfigService.h b/services/URIBeaconConfigService.h
index 05d1b75..01dff98 100644
--- a/services/URIBeaconConfigService.h
+++ b/services/URIBeaconConfigService.h
@@ -91,7 +91,7 @@ public:
         }
         strcpy(reinterpret_cast<char *>(uriData), uriDataIn);
 
-        if (powerModeIn != NULL) {
+        if (powerLevelsIn != NULL) {
             memcpy(powerLevels, powerLevelsIn, sizeof(powerLevels));
             updateTxPowerLevelsCharacteristic();
         }