diff --git a/wscript b/wscript
index f95fdb4a..11472038 100644
--- a/wscript
+++ b/wscript
@@ -220,7 +220,7 @@ def configure(conf):
 
     conf.env['BUILD_WERROR'] = not RELEASE
     add_cflag(conf, '-Wall')
-    add_cflag(conf, '-Wimplicit-fallthrough=0')
+    add_cflag(conf, '-Wno-implicit-fallthrough')
     add_cflag(conf, '--warn-no-restrict')
     # lash_wrap code is generated by swig and causes warnings
     if not conf.env['BUILD_PYLASH']: