diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index eeedd5ae7b35..359510d6daf6 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,5 +1,8 @@
 2016-07-31  Jonathan Wakely  <jwakely@redhat.com>
 
+	* testsuite/23_containers/list/requirements/dr438/insert_neg.cc:
+	Adjust dg-prune-output pattern for error in C++98 mode.
+
 	* testsuite/28_regex/basic_regex/ctors/basic/raw_string.cc: Only
 	run for C++11 or later.
 
diff --git a/libstdc++-v3/testsuite/23_containers/list/requirements/dr438/constructor_2_neg.cc b/libstdc++-v3/testsuite/23_containers/list/requirements/dr438/constructor_2_neg.cc
index 313c54a91e35..769d6156d8d6 100644
--- a/libstdc++-v3/testsuite/23_containers/list/requirements/dr438/constructor_2_neg.cc
+++ b/libstdc++-v3/testsuite/23_containers/list/requirements/dr438/constructor_2_neg.cc
@@ -18,7 +18,7 @@
 // <http://www.gnu.org/licenses/>.
 
 // { dg-do compile }
-// { dg-prune-output 1682 }
+// { dg-prune-output "no matching function .*_M_fill_initialize" }
 
 #include <list>
 #include <utility>