diff --git a/googletest/samples/sample8_unittest.cc b/googletest/samples/sample8_unittest.cc
index 7274334..ce75cf0 100644
--- a/googletest/samples/sample8_unittest.cc
+++ b/googletest/samples/sample8_unittest.cc
@@ -26,8 +26,7 @@
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-//
-// Author: vladl@google.com (Vlad Losev)
+
 
 // This sample shows how to test code relying on some global flag variables.
 // Combine() helps with generating all possible combinations of such flags,
@@ -37,7 +36,7 @@
 #include "prime_tables.h"
 
 #include "gtest/gtest.h"
-
+namespace {
 #if GTEST_HAS_COMBINE
 
 // Suppose we want to introduce a new, improved implementation of PrimeTable
@@ -171,3 +170,4 @@
 TEST(DummyTest, CombineIsNotSupportedOnThisPlatform) {}
 
 #endif  // GTEST_HAS_COMBINE
+}  // namespace