diff --git a/wifi/aidl/default/wifi_feature_flags.cpp b/wifi/aidl/default/wifi_feature_flags.cpp
index 3c9f042..35b4b4a 100644
--- a/wifi/aidl/default/wifi_feature_flags.cpp
+++ b/wifi/aidl/default/wifi_feature_flags.cpp
@@ -122,6 +122,7 @@
 #define AP IfaceConcurrencyType::AP
 #define AP_BRIDGED IfaceConcurrencyType::AP_BRIDGED
 #define P2P IfaceConcurrencyType::P2P
+#undef NAN  // undefine NAN from math.h
 #define NAN IfaceConcurrencyType::NAN_IFACE
 static const std::vector<IWifiChip::ChipMode> kChipModesPrimary{
         {kMainModeId, legacyToChipConcurrencyComboList({WIFI_HAL_INTERFACE_COMBINATIONS})},