diff --git a/CMake/BuildGoogleClient.cmake b/CMake/BuildGoogleClient.cmake
index f4d612f6cc6a07b1cdbcfcf46514d0d9c1a28a9e..16d9e918c518ca38e56c9c0a6654847127ac31cb 100644
--- a/CMake/BuildGoogleClient.cmake
+++ b/CMake/BuildGoogleClient.cmake
@@ -93,7 +93,9 @@ function(addGoogleCloudToTarget target)
     target_sources(${target} PRIVATE ${google-cloud-cpp_SOURCE_DIR}/google/cloud/terminate_handler.cc)
   endif()
 
-  if (NOT (CMAKE_CXX_COMPILER_ID STREQUAL "MSVC"))
+  if (CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
+    set_source_files_properties(${google-cloud-cpp_SOURCE_DIR}/google/cloud/storage/internal/object_streambuf.cc PROPERTIES COMPILE_FLAGS /WX-)
+  else()
     set_source_files_properties(${google-cloud-cpp_SOURCE_DIR}/google/cloud/storage/internal/openssl_util.cc PROPERTIES COMPILE_FLAGS -Wno-pedantic)
     set_source_files_properties(${google-cloud-cpp_SOURCE_DIR}/google/cloud/storage/internal/bucket_requests.cc PROPERTIES COMPILE_FLAGS -Wno-pedantic)
   endif()