diff --git a/packages/grpc-tools/build_binaries.sh b/packages/grpc-tools/build_binaries.sh
index 2227e985..df6dc2c3 100755
--- a/packages/grpc-tools/build_binaries.sh
+++ b/packages/grpc-tools/build_binaries.sh
@@ -35,9 +35,8 @@ for arch in "${arch_list[@]}"; do
       toolchain_flag=-DCMAKE_TOOLCHAIN_FILE=linux_64bit.toolchain.cmake
       ;;
   esac
-  rm -f $base/build/bin/protoc
-  rm -f $base/build/bin/grpc_node_plugin
-  rm -f CMakeCache.txt
+  git clean -xdf
+  git submodule foreach --recursive git clean -xdf;
   cmake $toolchain_flag . && cmake --build . --target clean && cmake --build . -- -j 12
   cp -L $protobuf_base/protoc $base/build/bin/protoc
   cp $base/grpc_node_plugin $base/build/bin/