diff --git a/test/mp_valid.cpp b/test/mp_valid.cpp
index a096442..40ccbb8 100644
--- a/test/mp_valid.cpp
+++ b/test/mp_valid.cpp
@@ -1,5 +1,5 @@
 
-//  Copyright 2015 Peter Dimov.
+// Copyright 2015 Peter Dimov.
 //
 // Distributed under the Boost Software License, Version 1.0.
 //
@@ -27,7 +27,7 @@ template<class T> using add_extents = T[];
 
 int main()
 {
-	using boost::mp11::mp_valid;
+    using boost::mp11::mp_valid;
     using boost::mp11::mp_identity;
 
     BOOST_TEST_TRAIT_FALSE((mp_valid<mp_identity>));
@@ -49,7 +49,7 @@ int main()
     BOOST_TEST_TRAIT_FALSE((mp_valid<add_pointer, void, void>));
 
 #if !defined( BOOST_GCC ) || !BOOST_WORKAROUND( BOOST_GCC, < 70000 )
-    // g++ up to at least 6.2 doesn't like add_reference for some reason or other
+    // g++ up to at least 6.3 doesn't like add_reference for some reason or other
     BOOST_TEST_TRAIT_FALSE((mp_valid<add_reference>));
 #if !defined( BOOST_MSVC ) || !BOOST_WORKAROUND( BOOST_MSVC, <= 1800 )
     // msvc-12.0 gives an internal error here