diff --git a/.mocharc.js b/.mocharc.js
index e539d3b..05a7cc9 100644
--- a/.mocharc.js
+++ b/.mocharc.js
@@ -1,7 +1,6 @@
 'use strict';
 
 module.exports = {
-  delay: true,
   enableSourceMaps: true,
   reporter: 'dot',
   spec: 'tests/{**,}/*.test.js',
diff --git a/tests/conformance.test.js b/tests/conformance.test.js
index 488c307..6ee5183 100644
--- a/tests/conformance.test.js
+++ b/tests/conformance.test.js
@@ -221,9 +221,10 @@ const specialEncodings = {
       }
     }
   });
-
-  run(); // This is a Mocha global.
-})();
+})().catch(err => {
+  console.error(err);
+  process.exit(1);
+});
 
 // -- Helpers ------------------------------------------------------------------
 function createTest(testRoot, test) {