diff --git a/velox/connectors/hive/storage_adapters/gcs/tests/CMakeLists.txt b/velox/connectors/hive/storage_adapters/gcs/tests/CMakeLists.txt
index e88c62ed589f9..3f3971981d717 100644
--- a/velox/connectors/hive/storage_adapters/gcs/tests/CMakeLists.txt
+++ b/velox/connectors/hive/storage_adapters/gcs/tests/CMakeLists.txt
@@ -39,5 +39,6 @@ target_link_libraries(
   velox_exec_test_lib
   velox_dwio_common_exception
   velox_exec
+  GTest::gmock
   GTest::gtest
   GTest::gtest_main)
diff --git a/velox/connectors/hive/storage_adapters/gcs/tests/GCSInsertTest.cpp b/velox/connectors/hive/storage_adapters/gcs/tests/GCSInsertTest.cpp
index 9f3a7b431ca75..639d79843fe89 100644
--- a/velox/connectors/hive/storage_adapters/gcs/tests/GCSInsertTest.cpp
+++ b/velox/connectors/hive/storage_adapters/gcs/tests/GCSInsertTest.cpp
@@ -39,6 +39,7 @@ namespace {
 class GCSInsertTest : public testing::Test, public test::VectorTestBase {
  protected:
   static void SetUpTestSuite() {
+    registerGCSFileSystem();
     memory::MemoryManager::testingSetInstance({});
     if (testbench_ == nullptr) {
       testbench_ = std::make_shared<GcsTestbench>();