diff --git a/src/SConscript b/src/SConscript
index 24789964a..bca5a45b8 100644
--- a/src/SConscript
+++ b/src/SConscript
@@ -64,7 +64,7 @@ if env['XMLPARSER'] == 'libxml2':
 if env['THREADING'] == 'multi':
     libraries.append('boost_thread%s' % env['BOOST_APPEND'])
         
-if env['PLATFORM'] == 'Darwin':
+if env['PLATFORM'] in ('Darwin','SunOS'):
     if env['HAS_BOOST_SYSTEM']:
         libraries.append('boost_system%s' % env['BOOST_APPEND'])