diff --git a/test/sp_constexpr_test.cpp b/test/sp_constexpr_test.cpp
index 20f8c85..7238e26 100644
--- a/test/sp_constexpr_test.cpp
+++ b/test/sp_constexpr_test.cpp
@@ -22,7 +22,6 @@
 #endif
 
 #if defined(__clang__) && defined( BOOST_NO_CXX14_CONSTEXPR )
-// Clang 4+ in C++11 mode works too, but how to detect it?
 # undef HAVE_CONSTEXPR_INIT
 #endif
 
diff --git a/test/sp_constexpr_test2.cpp b/test/sp_constexpr_test2.cpp
index 238c8f4..e508fa1 100644
--- a/test/sp_constexpr_test2.cpp
+++ b/test/sp_constexpr_test2.cpp
@@ -22,7 +22,6 @@
 #endif
 
 #if defined(__clang__) && defined( BOOST_NO_CXX14_CONSTEXPR )
-// Clang 4+ in C++11 mode works too, but how to detect it?
 # undef HAVE_CONSTEXPR_INIT
 #endif