diff --git a/audio/effect/2.0/Android.mk b/audio/effect/2.0/Android.mk
index a30de1c..0f4b5d4 100644
--- a/audio/effect/2.0/Android.mk
+++ b/audio/effect/2.0/Android.mk
@@ -34,7 +34,9 @@
 $(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
 $(GEN): PRIVATE_CUSTOM_TOOL = \
         $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
-        -Ljava-constants -randroid.hardware:hardware/interfaces \
+        -Ljava-constants \
+        -randroid.hardware:hardware/interfaces \
+        -randroid.hidl:system/libhidl/transport \
         android.hardware.audio.effect@2.0
 
 $(GEN):