diff --git a/libcore/build.sh b/libcore/build.sh
index a45d3c2d..22b9a7b0 100755
--- a/libcore/build.sh
+++ b/libcore/build.sh
@@ -9,7 +9,7 @@ rm -rf $BUILD/android \
   $BUILD/javac-output \
   $BUILD/src
 
-gomobile bind -v -androidapi 21 -trimpath -ldflags='-s -w' -tags='with_conntrack,with_gvisor,with_quic,with_wireguard,with_utls,with_clash_api,with_ech' . || exit 1
+gomobile bind -v -androidapi 21 -cache $(realpath $BUILD) -trimpath -ldflags='-s -w' -tags='with_conntrack,with_gvisor,with_quic,with_wireguard,with_utls,with_clash_api,with_ech' . || exit 1
 rm -r libcore-sources.jar
 
 proj=../app/libs