diff --git a/prepare.sh b/prepare.sh
index 2a88a7f..f5c0126 100755
--- a/prepare.sh
+++ b/prepare.sh
@@ -3,6 +3,7 @@
 set +e
 
 git submodule update --init --recursive
+git-lfs fetch
 
 (cd tools/mmd && make release)
 (cd tools/mmd/build && make)