diff --git a/libs/ui/Android.mk b/libs/ui/Android.mk
index 5aff7a4..80c28a1 100644
--- a/libs/ui/Android.mk
+++ b/libs/ui/Android.mk
@@ -16,6 +16,7 @@
 include $(CLEAR_VARS)
 
 LOCAL_SRC_FILES:= \
+	Fence.cpp \
 	FramebufferNativeWindow.cpp \
 	GraphicBuffer.cpp \
 	GraphicBufferAllocator.cpp \
@@ -26,8 +27,9 @@
 
 LOCAL_SHARED_LIBRARIES := \
 	libcutils \
-	libutils \
-	libhardware
+	libhardware \
+	libsync \
+	libutils
 
 ifneq ($(BOARD_FRAMEBUFFER_FORCE_FORMAT),)
 LOCAL_CFLAGS += -DFRAMEBUFFER_FORCE_FORMAT=$(BOARD_FRAMEBUFFER_FORCE_FORMAT)