diff --git a/googletest/samples/sample10_unittest.cc b/googletest/samples/sample10_unittest.cc
index 95b4811b..21079549 100644
--- a/googletest/samples/sample10_unittest.cc
+++ b/googletest/samples/sample10_unittest.cc
@@ -38,7 +38,6 @@ using ::testing::InitGoogleTest;
 using ::testing::Test;
 using ::testing::TestEventListeners;
 using ::testing::TestInfo;
-using ::testing::TestPartResult;
 using ::testing::UnitTest;
 
 namespace {
diff --git a/googletest/samples/sample9_unittest.cc b/googletest/samples/sample9_unittest.cc
index d627ea7d..0a2f0970 100644
--- a/googletest/samples/sample9_unittest.cc
+++ b/googletest/samples/sample9_unittest.cc
@@ -40,7 +40,6 @@ using ::testing::Test;
 using ::testing::TestEventListeners;
 using ::testing::TestInfo;
 using ::testing::TestPartResult;
-using ::testing::TestSuite;
 using ::testing::UnitTest;
 namespace {
 // Provides alternative output mode which produces minimal amount of