diff --git a/lib/fs.js b/lib/fs.js
index 65c828ea110d2d..9c0173ec27c1c0 100644
--- a/lib/fs.js
+++ b/lib/fs.js
@@ -2516,7 +2516,7 @@ function realpathSync(p, options) {
       }
       resolvedLink = pathModule.resolve(previous, linkTarget);
 
-      if (cache) cache.set(base, resolvedLink);
+      cache?.set(base, resolvedLink);
       if (!isWindows) seenLinks[id] = linkTarget;
     }
 
@@ -3041,8 +3041,7 @@ ObjectDefineProperties(fs, {
     configurable: true,
     enumerable: true,
     get() {
-      if (promises === null)
-        promises = require('internal/fs/promises').exports;
+      promises ??= require('internal/fs/promises').exports;
       return promises;
     }
   }