diff --git a/wifi/1.0/default/Android.mk b/wifi/1.0/default/Android.mk
index 62d2e0b..931a314 100644
--- a/wifi/1.0/default/Android.mk
+++ b/wifi/1.0/default/Android.mk
@@ -18,6 +18,7 @@
 LOCAL_MODULE_RELATIVE_PATH := hw
 LOCAL_CPPFLAGS := -Wall -Wno-unused-parameter -Werror -Wextra
 LOCAL_SRC_FILES := \
+    hidl_struct_util.cpp \
     service.cpp \
     wifi.cpp \
     wifi_ap_iface.cpp \