diff --git a/config/index.js b/config/index.js
index 96b6566..4f4bc54 100644
--- a/config/index.js
+++ b/config/index.js
@@ -12,6 +12,7 @@
  * @type {Object}
  */
 Object.defineProperty(exports, 'cli', {
+  enumerable: true,
   value: require('./cli')
 });
 
@@ -20,6 +21,7 @@ Object.defineProperty(exports, 'cli', {
  * @type {Object}
  */
 Object.defineProperty(exports, 'npm', {
+  enumerable: true,
   value: require('./npm')
 });
 
@@ -28,5 +30,6 @@ Object.defineProperty(exports, 'npm', {
  * @type {Object}
  */
 Object.defineProperty(exports, 'syslog', {
+  enumerable: true,
   value: require('./syslog')
 });
diff --git a/index.js b/index.js
index cf89cf0..e3025cd 100644
--- a/index.js
+++ b/index.js
@@ -9,6 +9,7 @@
  * @type {Symbol}
  */
 Object.defineProperty(exports, 'LEVEL', {
+  enumerable: true,
   value: Symbol.for('level')
 });
 
@@ -21,6 +22,7 @@ Object.defineProperty(exports, 'LEVEL', {
  * @type {Symbol}
  */
 Object.defineProperty(exports, 'MESSAGE', {
+  enumerable: true,
   value: Symbol.for('message')
 });
 
@@ -32,6 +34,7 @@ Object.defineProperty(exports, 'MESSAGE', {
  * @type {Symbol}
  */
 Object.defineProperty(exports, 'SPLAT', {
+  enumerable: true,
   value: Symbol.for('splat')
 });
 
@@ -42,5 +45,6 @@ Object.defineProperty(exports, 'SPLAT', {
  * @type {Object}
  */
 Object.defineProperty(exports, 'configs', {
+  enumerable: true,
   value: require('./config')
 });