diff --git a/include/boost/concept/assert.hpp b/include/boost/concept/assert.hpp
index 871660c..80eca81 100755
--- a/include/boost/concept/assert.hpp
+++ b/include/boost/concept/assert.hpp
@@ -19,7 +19,7 @@
     && !defined(BOOST_NO_SFINAE)                                                    \
                                                                                     \
     && !(BOOST_WORKAROUND(__GNUC__, == 3) && BOOST_WORKAROUND(__GNUC_MINOR__, < 4)) \
-    && !(BOOST_WORKAROUND(__GNUC__, == 2)
+    && !(BOOST_WORKAROUND(__GNUC__, == 2))
 
 // Note: gcc-2.96 through 3.3.x have some SFINAE, but no ability to
 // check for the presence of particularmember functions.