diff --git a/deploy_static b/deploy_static
index 17689acf..10938f5e 100755
--- a/deploy_static
+++ b/deploy_static
@@ -7,7 +7,7 @@ active=$(ssh $remote readlink html)
 
 validatornu --Werror --skip-non-html static
 validatornu --Werror --skip-non-css static
-validatornu --skip-non-svg --no-langdetect static
+validatornu --Werror --skip-non-svg --no-langdetect static
 
 if [[ $active = html_a ]]; then
     target=html_b