diff --git a/doc/api/assert.md b/doc/api/assert.md
index 796c9c07d2431b..6935a9db4bda64 100644
--- a/doc/api/assert.md
+++ b/doc/api/assert.md
@@ -113,7 +113,9 @@ changes:
     description: Enumerable symbol properties are now compared.
   - version: v9.0.0
     pr-url: https://github.com/nodejs/node/pull/15036
-    description: NaN is now compared using the [SameValueZero][] comparison.
+    description: NaN is now compared using the
+                 [SameValueZero](https://tc39.github.io/ecma262/#sec-samevaluezero)
+                 comparison.
   - version: v8.5.0
     pr-url: https://github.com/nodejs/node/pull/15001
     description: Error names and messages are now properly compared
@@ -461,7 +463,9 @@ changes:
     description: -0 and +0 are not considered equal anymore.
   - version: v9.0.0
     pr-url: https://github.com/nodejs/node/pull/15036
-    description: NaN is now compared using the [SameValueZero][] comparison.
+    description: NaN is now compared using the
+                 [SameValueZero](https://tc39.github.io/ecma262/#sec-samevaluezero)
+                 comparison.
   - version: v9.0.0
     pr-url: https://github.com/nodejs/node/pull/15001
     description: Error names and messages are now properly compared