diff --git a/build/soong/android/variable.go b/build/soong/android/variable.go
index 029a518..5cdcfd7 100644
--- a/build/soong/android/variable.go
+++ b/build/soong/android/variable.go
@@ -35,6 +35,9 @@
 	Uses_generic_camera_parameter_library struct {
 		Srcs []string
 	}
+	Uses_metadata_as_fde_key struct {
+		Cflags []string
+	}
 	Uses_nvidia_enhancements struct {
 		Cppflags []string
 	}
@@ -61,6 +64,7 @@
 	Target_process_sdk_version_override *string `json:",omitempty"`
 	Target_shim_libs  *string `json:",omitempty"`
 	Uses_generic_camera_parameter_library  *bool `json:",omitempty"`
+	Uses_metadata_as_fde_key  *bool `json:",omitempty"`
 	Uses_nvidia_enhancements  *bool `json:",omitempty"`
 	Uses_qcom_bsp_legacy  *bool `json:",omitempty"`
 	Uses_qti_camera_device  *bool `json:",omitempty"`
diff --git a/build/soong/soong_config.mk b/build/soong/soong_config.mk
index 1444d0b..f421c58 100644
--- a/build/soong/soong_config.mk
+++ b/build/soong/soong_config.mk
@@ -17,6 +17,7 @@
 $(call add_json_str_omitempty, Target_process_sdk_version_override, $(TARGET_PROCESS_SDK_VERSION_OVERRIDE))
 $(call add_json_str_omitempty, Target_shim_libs, $(TARGET_LD_SHIM_LIBS))
 $(call add_json_bool, Uses_generic_camera_parameter_library, $(if $(TARGET_SPECIFIC_CAMERA_PARAMETER_LIBRARY),,true))
+$(call add_json_bool, Uses_metadata_as_fde_key, $(filter true,$(TARGET_USES_METADATA_AS_FDE_KEY)))
 $(call add_json_bool, Uses_nvidia_enhancements, $(filter TRUE,$(NV_ANDROID_FRAMEWORK_ENHANCEMENTS)))
 $(call add_json_bool, Uses_qcom_bsp_legacy, $(filter true,$(TARGET_USES_QCOM_BSP_LEGACY)))
 $(call add_json_bool, Uses_qti_camera_device, $(filter true,$(TARGET_USES_QTI_CAMERA_DEVICE)))