diff --git a/validate_static b/validate_static
index 694a6795..02045f27 100755
--- a/validate_static
+++ b/validate_static
@@ -5,7 +5,7 @@ shopt -s extglob globstar
 
 export PATH="$PWD/node_modules/.bin:$PATH"
 
-xmllint --noout static/**/*.@(svg|xml)
+xmllint --noout static/**/*.@(html|svg|xml)
 jshint --verbose static/**/*.js
 stylelint static/**/*.css
 validatornu --Werror --skip-non-html static