diff --git a/lib/util.js b/lib/util.js
index 0f0ed408ba4cc1..4525792b2ec4c4 100644
--- a/lib/util.js
+++ b/lib/util.js
@@ -342,6 +342,7 @@ inspect.colors = Object.assign(Object.create(null), {
 inspect.styles = Object.assign(Object.create(null), {
   'special': 'cyan',
   'number': 'yellow',
+  'bigint': 'yellow',
   'boolean': 'yellow',
   'undefined': 'grey',
   'null': 'bold',
@@ -650,6 +651,9 @@ function formatPrimitive(fn, value, ctx) {
   }
   if (typeof value === 'number')
     return formatNumber(fn, value);
+  // eslint-disable-next-line valid-typeof
+  if (typeof value === 'bigint')
+    return fn(`${value}n`, 'bigint');
   if (typeof value === 'boolean')
     return fn(`${value}`, 'boolean');
   if (typeof value === 'undefined')
diff --git a/test/parallel/test-util-inspect-bigint.js b/test/parallel/test-util-inspect-bigint.js
new file mode 100644
index 00000000000000..cb50c1f6982460
--- /dev/null
+++ b/test/parallel/test-util-inspect-bigint.js
@@ -0,0 +1,10 @@
+'use strict';
+
+// Flags: --harmony-bigint
+
+require('../common');
+const assert = require('assert');
+
+const { inspect } = require('util');
+
+assert.strictEqual(inspect(1n), '1n');