diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index ac2dde477afa..408c798a3f2c 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,9 @@
+2015-09-07  Jonathan Wakely  <jwakely@redhat.com>
+
+	* testsuite/30_threads/recursive_timed_mutex/unlock/2.cc: Run on
+	darwin.
+	* testsuite/30_threads/timed_mutex/unlock/2.cc: Run on darwin.
+
 2015-09-04  Jonathan Wakely  <jwakely@redhat.com>
 
 	PR libstdc++/65704
diff --git a/libstdc++-v3/testsuite/30_threads/recursive_timed_mutex/unlock/2.cc b/libstdc++-v3/testsuite/30_threads/recursive_timed_mutex/unlock/2.cc
index fc7e2ab7411b..26ca5c5618a6 100644
--- a/libstdc++-v3/testsuite/30_threads/recursive_timed_mutex/unlock/2.cc
+++ b/libstdc++-v3/testsuite/30_threads/recursive_timed_mutex/unlock/2.cc
@@ -1,7 +1,7 @@
 // { dg-do run { target *-*-freebsd* *-*-dragonfly* *-*-netbsd* *-*-linux* *-*-gnu* *-*-solaris* *-*-cygwin *-*-rtems* powerpc-ibm-aix* } }
 // { dg-options " -std=gnu++11 -pthread" { target *-*-freebsd* *-*-dragonfly* *-*-netbsd* *-*-linux* *-*-gnu* powerpc-ibm-aix* } }
 // { dg-options " -std=gnu++11 -pthreads" { target *-*-solaris* } }
-// { dg-options " -std=gnu++11 " { target *-*-cygwin *-*-rtems* } }
+// { dg-options " -std=gnu++11 " { target *-*-cygwin *-*-rtems* *-*-darwin* } }
 // { dg-require-cstdint "" }
 // { dg-require-gthreads "" }
 
diff --git a/libstdc++-v3/testsuite/30_threads/timed_mutex/unlock/2.cc b/libstdc++-v3/testsuite/30_threads/timed_mutex/unlock/2.cc
index a492f889b9bf..94a542fb24b1 100644
--- a/libstdc++-v3/testsuite/30_threads/timed_mutex/unlock/2.cc
+++ b/libstdc++-v3/testsuite/30_threads/timed_mutex/unlock/2.cc
@@ -1,7 +1,7 @@
 // { dg-do run { target *-*-freebsd* *-*-dragonfly* *-*-netbsd* *-*-linux* *-*-gnu* *-*-solaris* *-*-cygwin *-*-rtems* powerpc-ibm-aix* } }
 // { dg-options " -std=gnu++11 -pthread" { target *-*-freebsd* *-*-dragonfly* *-*-netbsd* *-*-linux* *-*-gnu* powerpc-ibm-aix* } }
 // { dg-options " -std=gnu++11 -pthreads" { target *-*-solaris* } }
-// { dg-options " -std=gnu++11 " { target *-*-cygwin *-*-rtems* } }
+// { dg-options " -std=gnu++11 " { target *-*-cygwin *-*-rtems* *-*-darwin* } }
 // { dg-require-cstdint "" }
 // { dg-require-gthreads "" }