diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index c7b20f10dc5..0b07d0efdcd 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,8 @@
+2019-05-20  Jonathan Wakely  <jwakely@redhat.com>
+
+	* testsuite/experimental/memory_resource/new_delete_resource.cc: Fix
+	test by passing correct alignment to deallocate function.
+
 2019-05-18  Jonathan Wakely  <jwakely@redhat.com>
 
 	PR libstdc++/90520
diff --git a/libstdc++-v3/testsuite/experimental/memory_resource/new_delete_resource.cc b/libstdc++-v3/testsuite/experimental/memory_resource/new_delete_resource.cc
index 5c5a0a4d7e3..41232b6fc67 100644
--- a/libstdc++-v3/testsuite/experimental/memory_resource/new_delete_resource.cc
+++ b/libstdc++-v3/testsuite/experimental/memory_resource/new_delete_resource.cc
@@ -103,7 +103,6 @@ test02()
 
 void
 test03()
-
 {
   using std::max_align_t;
   using std::size_t;
@@ -123,7 +122,8 @@ test03()
   p = r1->allocate(2, alignof(char));
   VERIFY( bytes_allocated == 2 );
   VERIFY( aligned<max_align_t>(p) );
-  r1->deallocate(p, 2);
+  r1->deallocate(p, 2, alignof(char));
+  __builtin_printf("%d\n", (int)bytes_allocated);
   VERIFY( bytes_allocated == 0 );
 
   p = r1->allocate(3, alignof(short));