diff --git a/include/boost/config/platform/solaris.hpp b/include/boost/config/platform/solaris.hpp
index e23cb138..55e223d3 100644
--- a/include/boost/config/platform/solaris.hpp
+++ b/include/boost/config/platform/solaris.hpp
@@ -9,5 +9,8 @@
 
 #define BOOST_PLATFORM "sun"
 
+#define BOOST_HAS_GETTIMEOFDAY
+
+