diff --git a/external/bin/capnpc-java b/external/bin/capnpc-java
new file mode 100755
index 0000000000..87c68319d8
--- /dev/null
+++ b/external/bin/capnpc-java
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:5280ba5027cbb638b44e1eb54a22428ef7340a7be66265a583517c6bb13ba4a6
+size 3052120