diff --git a/.travis.yml b/.travis.yml
index 62ec3ee0c3..66aed0ee2b 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -16,3 +16,4 @@ script:
   - jsonlint project.mml
   - set -o pipefail && ./node_modules/carto/bin/carto project.mml | xmllint - | wc -l
   - ./scripts/travis_check_project_files
+  - find symbols/ -name *.svg | xargs xmllint --noout