diff --git a/multitree/build_vendor.sh b/multitree/build_vendor.sh
index 5ed207ed6..fa1356a80 100755
--- a/multitree/build_vendor.sh
+++ b/multitree/build_vendor.sh
@@ -17,10 +17,16 @@
 
 export ALLOW_MISSING_DEPENDENCIES=true
 
-build/soong/soong_ui.bash --make-mode vendorimage TARGET_PRODUCT=cf_x86_64_phone TARGET_BUILD_VARIANT=userdebug
+build/soong/soong_ui.bash --make-mode vendorimage collect_ninja_inputs \
+  TARGET_PRODUCT=cf_x86_64_phone TARGET_BUILD_VARIANT=userdebug
 
 mkdir -p $DIST_DIR/soong
 
 for f in out/*.ninja out/soong/build.ninja; do
   gzip -c $f > $DIST_DIR/${f#out/}.gz
 done
+
+cp out/target/product/vsoc_x86_64/vendor.img $DIST_DIR
+
+out/host/linux-x86/bin/collect_ninja_inputs -n prebuilts/build-tools/linux-x86/bin/ninja \
+  -f out/combined-cf_x86_64_phone.ninja -t vendorimage > $DIST_DIR/ninja_inputs.json