diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index cb3f5abfb6ae9b5ac21febacf9babd60c724a6ea..fd39e4adc2d73ae5d3be17af3ae69c53f2fa9766 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,8 @@
+2011-06-11  Jonathan Wakely  <jwakely.gcc@gmail.com>
+
+	* testsuite/20_util/allocator_traits/requirements/
+	explicit_instantiation.cc: Add another instantiation.
+
 2011-06-11  Jonathan Wakely  <jwakely.gcc@gmail.com>
 
 	* testsuite/20_util/allocator_traits/requirements/typedefs.cc: Check
diff --git a/libstdc++-v3/testsuite/20_util/allocator_traits/requirements/explicit_instantiation.cc b/libstdc++-v3/testsuite/20_util/allocator_traits/requirements/explicit_instantiation.cc
index 13d3135cb140263b805d4302c32d5873bf511dc4..f73469667905656a139969384c5744a73ca29261 100644
--- a/libstdc++-v3/testsuite/20_util/allocator_traits/requirements/explicit_instantiation.cc
+++ b/libstdc++-v3/testsuite/20_util/allocator_traits/requirements/explicit_instantiation.cc
@@ -22,8 +22,21 @@
 
 #include <memory>
 
+typedef short test_type;
+
+template<typename T>
+  struct minimal_allocator
+  {
+    typedef T value_type;
+    minimal_allocator();
+    template <typename U>
+      minimal_allocator(const minimal_allocator<U>&);
+    T* allocate(std::size_t);
+    void deallocate(T*, std::size_t);
+  };
+
 namespace std
 {
-  typedef short test_type;
   template struct allocator_traits<std::allocator<test_type>>;
+  template struct allocator_traits<minimal_allocator<test_type>>;
 }