diff --git a/test/parallel/test-crypto-dh-leak.js b/test/parallel/test-crypto-dh-leak.js
index e57c65b8b1fceb..bcca210503299b 100644
--- a/test/parallel/test-crypto-dh-leak.js
+++ b/test/parallel/test-crypto-dh-leak.js
@@ -23,4 +23,4 @@ const after = process.memoryUsage().rss;
 
 // RSS should stay the same, ceteris paribus, but allow for
 // some slop because V8 mallocs memory during execution.
-assert(after - before < 5 << 20);
+assert(after - before < 5 << 20, `before=${before} after=${after}`);