diff --git a/src/SPC/builder/unix/library/grpc.php b/src/SPC/builder/unix/library/grpc.php
index ac4dd677..4dd38308 100644
--- a/src/SPC/builder/unix/library/grpc.php
+++ b/src/SPC/builder/unix/library/grpc.php
@@ -24,6 +24,7 @@ trait grpc
     protected function build(): void
     {
         $cmake = UnixCMakeExecutor::create($this)
+            ->setBuildDir("{$this->source_dir}/avoid_BUILD_file_conflict")
             ->addConfigureArgs(
                 '-DgRPC_SSL_PROVIDER=package',
                 '-DgRPC_INSTALL_BINDIR=' . BUILD_BIN_PATH,