diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 167d3ca74c6..9b50f1cd17e 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,9 @@
+2015-11-06  Kai Tietz  <ktietz70@googlemail.com>
+
+	* testsuite/26_numerics/complex/requirements/constexpr.cc
+	* testsuite/26_numerics/complex/requirements/constexpr_functions.cc:
+	Use constexpr where needed.
+
 2015-11-06  David Malcolm  <dmalcolm@redhat.com>
 
 	* testsuite/lib/libstdc++.exp (v3_target_compile): Add
diff --git a/libstdc++-v3/testsuite/26_numerics/complex/requirements/constexpr_functions.cc b/libstdc++-v3/testsuite/26_numerics/complex/requirements/constexpr_functions.cc
index c125a32ca6a..28a6d2cca2c 100644
--- a/libstdc++-v3/testsuite/26_numerics/complex/requirements/constexpr_functions.cc
+++ b/libstdc++-v3/testsuite/26_numerics/complex/requirements/constexpr_functions.cc
@@ -34,7 +34,7 @@ namespace __gnu_test
 	  void __constraint()
 	  { 
 	    typedef typename _Ttesttype::_ComplexT _ComplexT;
-	    const _ComplexT cc = { 1.1 };
+	    constexpr _ComplexT cc = { 1.1 };
 	    constexpr _Ttesttype a(cc);
 	    constexpr auto v1 __attribute__((unused)) = a.real();
 	    constexpr auto v2 __attribute__((unused)) = a.imag();
diff --git a/libstdc++-v3/testsuite/26_numerics/complex/value_operations/constexpr.cc b/libstdc++-v3/testsuite/26_numerics/complex/value_operations/constexpr.cc
index c7089a953a4..c3170c15fcd 100644
--- a/libstdc++-v3/testsuite/26_numerics/complex/value_operations/constexpr.cc
+++ b/libstdc++-v3/testsuite/26_numerics/complex/value_operations/constexpr.cc
@@ -34,7 +34,7 @@ namespace __gnu_test
 	  void __constraint()
 	  { 
 	    typedef typename _Ttesttype::_ComplexT _ComplexT;
-	    const _ComplexT cc = { 1.1 };
+	    constexpr _ComplexT cc = { 1.1 };
 	    constexpr _Ttesttype a(cc);
 	    constexpr auto v1 __attribute__((unused)) = real(a);
 	    constexpr auto v2 __attribute__((unused)) = imag(a);