diff --git a/wifi/1.4/default/wifi_legacy_hal.cpp b/wifi/1.4/default/wifi_legacy_hal.cpp
index 6f088d7..3ca3226 100644
--- a/wifi/1.4/default/wifi_legacy_hal.cpp
+++ b/wifi/1.4/default/wifi_legacy_hal.cpp
@@ -824,11 +824,10 @@
                                                     mode);
 }
 
-wifi_error WifiLegacyHal::setThermalMitigationMode(
-    const std::string& iface_name, wifi_thermal_mode mode,
-    uint32_t completion_window) {
+wifi_error WifiLegacyHal::setThermalMitigationMode(wifi_thermal_mode mode,
+                                                   uint32_t completion_window) {
     return global_func_table_.wifi_set_thermal_mitigation_mode(
-        getIfaceHandle(iface_name), mode, completion_window);
+        global_handle_, mode, completion_window);
 }
 
 std::pair<wifi_error, uint32_t> WifiLegacyHal::getLoggerSupportedFeatureSet(
diff --git a/wifi/1.4/default/wifi_legacy_hal.h b/wifi/1.4/default/wifi_legacy_hal.h
index 74cc84b..a7b40a0 100644
--- a/wifi/1.4/default/wifi_legacy_hal.h
+++ b/wifi/1.4/default/wifi_legacy_hal.h
@@ -259,8 +259,7 @@
     virtual wifi_error resetTxPowerScenario(const std::string& iface_name);
     wifi_error setLatencyMode(const std::string& iface_name,
                               wifi_latency_mode mode);
-    wifi_error setThermalMitigationMode(const std::string& iface_name,
-                                        wifi_thermal_mode mode,
+    wifi_error setThermalMitigationMode(wifi_thermal_mode mode,
                                         uint32_t completion_window);
     // Logger/debug functions.
     std::pair<wifi_error, uint32_t> getLoggerSupportedFeatureSet(