diff --git a/x-pack/legacy/plugins/reporting/server/lib/validate/__tests__/validate_encryption_key.js b/x-pack/legacy/plugins/reporting/server/lib/validate/__tests__/validate_encryption_key.js
index 37584e2ca46fc..10980f702d849 100644
--- a/x-pack/legacy/plugins/reporting/server/lib/validate/__tests__/validate_encryption_key.js
+++ b/x-pack/legacy/plugins/reporting/server/lib/validate/__tests__/validate_encryption_key.js
@@ -24,7 +24,7 @@ describe('Reporting: Validate config', () => {
         set: sinon.stub(),
       };
 
-      expect(() => validateEncryptionKey(config, logger)).not.to.throwError();
+      expect(() => validateEncryptionKey({ config: () => config }, logger)).not.to.throwError();
 
       sinon.assert.calledWith(config.set, 'xpack.reporting.encryptionKey');
       sinon.assert.calledWithMatch(logger.warning, /Generating a random key/);