diff --git a/libstdc++-v3/testsuite/21_strings/basic_string_view/typedefs.cc b/libstdc++-v3/testsuite/21_strings/basic_string_view/typedefs.cc
index b139e51e107..1beb2e1c54d 100644
--- a/libstdc++-v3/testsuite/21_strings/basic_string_view/typedefs.cc
+++ b/libstdc++-v3/testsuite/21_strings/basic_string_view/typedefs.cc
@@ -28,9 +28,7 @@ using check2_t = std::string_view;
 using check3_t = std::u8string_view;
 #endif
 
-#ifdef _GLIBCXX_USE_C99_STDINT_TR1
 using check4_t = std::u16string_view;
 using check5_t = std::u32string_view;
-#endif
 
 using check6_t = std::wstring_view;
diff --git a/libstdc++-v3/testsuite/experimental/string_view/typedefs.cc b/libstdc++-v3/testsuite/experimental/string_view/typedefs.cc
index 60c4e12aa4f..a09ed8f8a22 100644
--- a/libstdc++-v3/testsuite/experimental/string_view/typedefs.cc
+++ b/libstdc++-v3/testsuite/experimental/string_view/typedefs.cc
@@ -28,9 +28,7 @@ using check2_t = std::experimental::fundamentals_v1::string_view;
 using check3_t = std::experimental::fundamentals_v1::u8string_view;
 #endif
 
-#ifdef _GLIBCXX_USE_C99_STDINT_TR1
 using check4_t = std::experimental::fundamentals_v1::u16string_view;
 using check5_t = std::experimental::fundamentals_v1::u32string_view;
-#endif
 
 using check6_t = std::experimental::fundamentals_v1::wstring_view;