diff --git a/lib/internal/util/inspect.js b/lib/internal/util/inspect.js
index 7ee10319658..dc22a80f98c 100644
--- a/lib/internal/util/inspect.js
+++ b/lib/internal/util/inspect.js
@@ -1173,17 +1173,8 @@ function formatValue(ctx, value, recurseTimes, typedArray) {
   // Using an array here is actually better for the average case than using
   // a Set. `seen` will only check for the depth and will never grow too large.
   if (ctx.seen.includes(value)) {
-    let index = 1;
-    if (ctx.circular === undefined) {
-      ctx.circular = new SafeMap();
-      ctx.circular.set(value, index);
-    } else {
-      index = ctx.circular.get(value);
-      if (index === undefined) {
-        index = ctx.circular.size + 1;
-        ctx.circular.set(value, index);
-      }
-    }
+    ctx.circular ??= new SafeMap();
+    const index = ctx.circular.getOrInsert(value, ctx.circular.size + 1);
     return ctx.stylize(`[Circular *${index}]`, 'special');
   }