diff --git a/tools/run_tests/build_package_node.sh b/tools/run_tests/build_package_node.sh
index e98fabbc5f04b0f9213b1edefddfb6d99f0fbf75..e945f2a00e9330da82a4146e2831881e7cc2e61f 100755
--- a/tools/run_tests/build_package_node.sh
+++ b/tools/run_tests/build_package_node.sh
@@ -78,6 +78,7 @@ for arch in {x86,x64}; do
       *)
         node_plat=$plat
     esac
+    rm bin/*
     input_dir="$EXTERNAL_GIT_ROOT/architecture=$arch,language=protoc,platform=$plat/artifacts"
     cp $input_dir/protoc* bin/
     cp $input_dir/grpc_node_plugin* bin/