diff --git a/lib/fail.js b/lib/fail.js
index 47459c9..a7c3974 100644
--- a/lib/fail.js
+++ b/lib/fail.js
@@ -1,7 +1,7 @@
 'use strict';
 
 /**
- * @typedef {Record<string, string | number | boolean | null>} FailureProperties
+ * @typedef {Record<string, string | string[] | number | number[] | boolean | null>} FailureProperties
  */
 
 /**
diff --git a/test/failure.test.js b/test/failure.test.js
index 9a7ea17..3d901f7 100644
--- a/test/failure.test.js
+++ b/test/failure.test.js
@@ -48,6 +48,18 @@ describe('failure', () => {
     assert.isUndefined(error.cause);
   });
 
+  it('supports string arrays as error properties', () => {
+    const error = failure('Oups!', INVALID, { some: ['a', 'b'] });
+
+    assert.equals(error.properties, { some: ['a', 'b'] });
+  });
+
+  it('supports number arrays as error properties', () => {
+    const error = failure('Oups!', INVALID, { some: [1, 2] });
+
+    assert.equals(error.properties, { some: [1, 2] });
+  });
+
   it('does not allow to change the error code', () => {
     const error = failure('Oups!', INVALID);