diff --git a/js/main.js b/js/main.js
index 01c7ff26eb644f29149c63429a776de4af0c51a7..b6a401b5717598e874aeec1ecb9372e4cd07b861 100755
--- a/js/main.js
+++ b/js/main.js
@@ -16,6 +16,9 @@
     attach: function attach() {
       if (window.alreadyLaunch) return;
 
+      // Drupal tacjs configuration is required.
+      if (!drupalSettings.tacjs) return;
+
       // Set base URL for TacJS Log
       tarteaucitron.baseUrl = drupalSettings.path.baseUrl;