diff --git a/third_party/lib/cpp/BUILD.gn b/third_party/lib/cpp/BUILD.gn
index 8c879eaa99af8fe2d05167cd3fb19a1343b08e1b..14945d445158d6ae3af0eb73d44ab28f156c8a7f 100755
--- a/third_party/lib/cpp/BUILD.gn
+++ b/third_party/lib/cpp/BUILD.gn
@@ -18,6 +18,9 @@ config("gtest_private_config") {
 
 config("gtest_config") {
   include_dirs = [ "//third_party/googletest/googletest/include" ]
+  cflags = [ "-std=c++17" ]
+  cflags_objcc = [ "-std=c++17" ]
+  cflags_cc = [ "-std=c++17" ]
 }
 
 static_library("gtest") {
@@ -53,6 +56,7 @@ static_library("gtest") {
     "//third_party/googletest/googletest/include/gtest/internal/gtest-string.h",
     "//third_party/googletest/googletest/include/gtest/internal/gtest-tuple.h",
     "//third_party/googletest/googletest/include/gtest/internal/gtest-type-util.h",
+    "//third_party/googletest/googletest/src/gtest-assertion-result.cc",
     "//third_party/googletest/googletest/src/gtest-death-test.cc",
     "//third_party/googletest/googletest/src/gtest-filepath.cc",
     "//third_party/googletest/googletest/src/gtest-internal-inl.h",