diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index f06edc1c5bc5..c94e77169a27 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,9 @@
+2017-12-24  Jonathan Wakely  <jwakely@redhat.com>
+
+	PR libstdc++/83450
+	* testsuite/21_strings/basic_string/pthread18185.cc: Add return
+	statement.
+
 2017-12-20  François Dumont  <fdumont@gcc.gnu.org>
 
 	PR libstdc++/82522
diff --git a/libstdc++-v3/testsuite/21_strings/basic_string/pthread18185.cc b/libstdc++-v3/testsuite/21_strings/basic_string/pthread18185.cc
index fb3d43de5287..b6649178a0a3 100644
--- a/libstdc++-v3/testsuite/21_strings/basic_string/pthread18185.cc
+++ b/libstdc++-v3/testsuite/21_strings/basic_string/pthread18185.cc
@@ -38,6 +38,7 @@ foo (void*)
     {
       pthread_exit (0);
     }
+  return 0; // See libstdc++/83450
 }
 
 // c++/18185