diff --git a/aosp/vendor/common/prebuild/media_engine.mk b/aosp/vendor/common/prebuild/media_engine.mk
index 724ad496632092c8604d6d30e859aa120b34fbc5..d95afffa635b268917341a2931ca18fe8124425a 100644
--- a/aosp/vendor/common/prebuild/media_engine.mk
+++ b/aosp/vendor/common/prebuild/media_engine.mk
@@ -1,4 +1,5 @@
 CUR_PATH := vendor/common/prebuild
+LIBRARY_FILE := system/core/rootdir/etc/public.libraries.android.txt
 
 # CME
 ifeq ($(CONFIG_ENABLE_CME),y)
@@ -26,11 +27,15 @@ PRODUCT_COPY_FILES += \
   $(CUR_PATH)/system/etc/init/media-engine.rc:system/etc/init/media-engine.rc \
   $(CUR_PATH)/system/usr/keylayout/Vendor_0001_Product_0001.kl:system/usr/keylayout/Vendor_0001_Product_0001.kl
 
+$(shell grep -q "libCPHMediaEngine.so" $(LIBRARY_FILE) || echo "libCPHMediaEngine.so" >> $(LIBRARY_FILE))
+else
+$(shell sed -i '/libCPHMediaEngine.so/d' $(LIBRARY_FILE))
 endif
 
 # audio hal
 ifeq ($(CONFIG_ENABLE_HW_AUDIO),y)
 PRODUCT_PACKAGES += \
   audio.primary.default \
-  libopus.vendor 
-endif
\ No newline at end of file
+  libopus.vendor
+endif
+