diff --git a/test/pummel/test-tls-connect-memleak.js b/test/pummel/test-tls-connect-memleak.js
index 4425e8d04eb42c..1ef131d6876ac4 100644
--- a/test/pummel/test-tls-connect-memleak.js
+++ b/test/pummel/test-tls-connect-memleak.js
@@ -33,7 +33,8 @@ const fixtures = require('../common/fixtures');
 assert.strictEqual(
   typeof global.gc,
   'function',
-  'Run this test with --expose-gc'
+  `Type of global.gc is not a function. Type: ${typeof global.gc}.` +
+    ' Run this test with --expose-gc'
 );
 
 tls.createServer({