diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 0da61d322aa..6e9ce615a67 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,9 @@
+2018-06-26  David Edelsohn  <dje.gcc@gmail.com>
+
+	* testsuite/experimental/algorithm/sample-2.cc: Add TLS DejaGNU
+	directives.
+	* testsuite/experimental/algorithm/shuffle.cc: Likewise.
+
 2018-06-26  Jonathan Wakely  <jwakely@redhat.com>
 
 	* include/bits/regex.tcc (regex_iterator::operator==): Add missing
diff --git a/libstdc++-v3/testsuite/experimental/algorithm/sample-2.cc b/libstdc++-v3/testsuite/experimental/algorithm/sample-2.cc
index 4ef9a7c77e4..541d17e08a0 100644
--- a/libstdc++-v3/testsuite/experimental/algorithm/sample-2.cc
+++ b/libstdc++-v3/testsuite/experimental/algorithm/sample-2.cc
@@ -16,6 +16,8 @@
 // <http://www.gnu.org/licenses/>.
 
 // { dg-do run { target c++14 } }
+// { dg-require-effective-target tls_runtime }
+// { dg-add-options tls }
 
 #include <experimental/algorithm>
 #include <algorithm>
diff --git a/libstdc++-v3/testsuite/experimental/algorithm/shuffle.cc b/libstdc++-v3/testsuite/experimental/algorithm/shuffle.cc
index 5c4e7fbd433..ee06fbd996a 100644
--- a/libstdc++-v3/testsuite/experimental/algorithm/shuffle.cc
+++ b/libstdc++-v3/testsuite/experimental/algorithm/shuffle.cc
@@ -1,4 +1,6 @@
 // { dg-do run { target c++14 } }
+// { dg-require-effective-target tls_runtime }
+// { dg-add-options tls }
 
 // Derived from: 2010-03-19  Paolo Carlini  <paolo.carlini@oracle.com>