diff --git a/qutebrowser/javascript/position_caret.js b/qutebrowser/javascript/position_caret.js
index 4f6c32380..c2df1cf1d 100644
--- a/qutebrowser/javascript/position_caret.js
+++ b/qutebrowser/javascript/position_caret.js
@@ -18,8 +18,6 @@
 * along with qutebrowser.  If not, see <http://www.gnu.org/licenses/>.
 */
 
-/* eslint-disable max-len */
-
 /**
  * Snippet to position caret at top of the page when caret mode is enabled.
  * Some code was borrowed from:
@@ -28,8 +26,6 @@
  * https://github.com/1995eaton/chromium-vim/blob/master/content_scripts/visual.js
  */
 
-/* eslint-enable max-len */
-
 "use strict";
 
 (function() {
diff --git a/scripts/dev/ci/travis_run.sh b/scripts/dev/ci/travis_run.sh
index a1f498b62..46a64bc9c 100644
--- a/scripts/dev/ci/travis_run.sh
+++ b/scripts/dev/ci/travis_run.sh
@@ -5,7 +5,7 @@ if [[ $DOCKER ]]; then
 elif [[ $TESTENV == eslint ]]; then
     # Can't run this via tox as we can't easily install tox in the javascript travis env
     cd qutebrowser/javascript || exit 1
-    eslint --color .
+    eslint --color --report-unused-disable-directives .
 else
     args=()
     [[ $TRAVIS_OS_NAME == osx ]] && args=('--qute-bdd-webengine' '--no-xvfb')
diff --git a/tox.ini b/tox.ini
index d1ac9fc2f..704e93744 100644
--- a/tox.ini
+++ b/tox.ini
@@ -274,4 +274,4 @@ commands =
 deps =
 whitelist_externals = eslint
 changedir = {toxinidir}/qutebrowser/javascript
-commands = eslint --color .
+commands = eslint --color --report-unused-disable-directives .