diff --git a/include/boost/optional/detail/optional_config.hpp b/include/boost/optional/detail/optional_config.hpp
index 73467a3..3bf0cc2 100644
--- a/include/boost/optional/detail/optional_config.hpp
+++ b/include/boost/optional/detail/optional_config.hpp
@@ -149,7 +149,7 @@
 #endif
 
 #if __cplusplus >= 201103L
-#  if BOOST_WORKAROUND(BOOST_GCC, >= 50000) && 
+#  if BOOST_WORKAROUND(BOOST_GCC, >= 50000)
 #    define BOOST_OPTIONAL_DETAIL_USE_STD_TYPE_TRAITS
 #  elif (defined BOOST_CLANG)
 #    define BOOST_OPTIONAL_DETAIL_USE_STD_TYPE_TRAITS