diff --git a/SConscript b/SConscript
index e763ee5..0459c27 100644
--- a/SConscript
+++ b/SConscript
@@ -288,7 +288,7 @@ elif env['COMPILER_FAMILY'] == 'cl':
 if env['COMPILER_FAMILY'] == 'gcc':
     env.Append(CCFLAGS = ['-Wno-volatile'])
 elif env['COMPILER_FAMILY'] == 'clang':
-    env.Append(CCFLAGS = ['-Wno-deprecated-volatile', '-Wno-nested-anon-types'])
+    env.Append(CCFLAGS = ['-Wno-deprecated-volatile', '-Wno-nested-anon-types', '-Wno-unknown-warning-option'])
 
 env.AddMethod(_cook, 'Cook')
 env.AddMethod(_parse_lib_conf, 'ParseLibConf')