diff --git a/src/ArchonCrystal.js b/src/ArchonCrystal.js
index ecf24bf..d4aca76 100644
--- a/src/ArchonCrystal.js
+++ b/src/ArchonCrystal.js
@@ -8,19 +8,19 @@ export default class ArchonCrystal {
   /**
    *
    * @param {Object} crystal The archon crystal object
-   * @param {string} local The locale to get translations in
+   * @param {string} locale The locale to get translations in
    */
-  constructor(crystal, local) {
+  constructor(crystal, locale = 'en') {
     /**
      * Archon shard color
      * @type {String}
      */
-    this.color = archonShardColor(crystal.Color, local);
+    this.color = archonShardColor(crystal.Color, locale);
 
     /**
      * Archon shard modifier
      * @type {String}
      */
-    this.modifier = archonShardUpgradeType(crystal.Color, crystal.UpgradeType, local);
+    this.modifier = archonShardUpgradeType(crystal.Color, crystal.UpgradeType, locale);
   }
 }
diff --git a/src/Mission.js b/src/Mission.js
index 27730bd..bf72da6 100644
--- a/src/Mission.js
+++ b/src/Mission.js
@@ -10,7 +10,7 @@ export default class Mission {
    * @param {Object} mission The mission data
    * @param {string} locale The locale to return in
    */
-  constructor(mission, locale) {
+  constructor(mission, locale = 'en') {
     const uniqueName = mission.type || mission.Tag;
 
     /**
diff --git a/src/Profile.js b/src/Profile.js
index c7d5d34..663f653 100644
--- a/src/Profile.js
+++ b/src/Profile.js
@@ -17,7 +17,7 @@ export default class Profile {
    * @param {Object} profile The profile data to parse
    * @param {string} locale The locale to return in where possible
    */
-  constructor(profile, locale) {
+  constructor(profile, locale = 'en') {
     /**
      * Player's acount ID
      * @type {Stirng}
diff --git a/src/ProfileParser.js b/src/ProfileParser.js
index bd128b8..43ba811 100644
--- a/src/ProfileParser.js
+++ b/src/ProfileParser.js
@@ -13,7 +13,7 @@ export default class ProfileParser {
    * @param {Object} data The data returned by getProfile endpoint
    * @param {string} locale The locale to return where possible
    */
-  constructor(data, locale) {
+  constructor(data, locale = 'en') {
     /**
      * Player's profile
      * @type {Profile}
diff --git a/src/Syndicate.js b/src/Syndicate.js
index 0d42882..abf6f68 100644
--- a/src/Syndicate.js
+++ b/src/Syndicate.js
@@ -9,7 +9,7 @@ export default class Syndicate {
    * @param {Object} affiliation The syndicate data
    * @param {string} locale  locale code
    */
-  constructor(affiliation, locale) {
+  constructor(affiliation, locale = 'en') {
     // TODO: name is readable but still might want to clean them up
     // i.e "NewLokaSyndicate" can be "New Loka"" instead
 
diff --git a/test/unit/archonCrystal.spec.js b/test/unit/archonCrystal.spec.js
index 27e92cf..a80e3ec 100644
--- a/test/unit/archonCrystal.spec.js
+++ b/test/unit/archonCrystal.spec.js
@@ -11,7 +11,7 @@ describe('ArchonShard', () => {
         UpgradeType: '/Lotus/Upgrades/Invigorations/ArchonCrystalUpgrades/ArchonCrystalUpgradeWarframeArmourMaxMythic',
       };
 
-      const shard = new ArchonCrystal(shardData, 'en');
+      const shard = new ArchonCrystal(shardData);
 
       assert.strictEqual(shard.color, 'Tauforged Azure');
       assert.strictEqual(shard.modifier, '+225 Armor');
diff --git a/test/unit/mission.spec.js b/test/unit/mission.spec.js
index b7c1363..51962d6 100644
--- a/test/unit/mission.spec.js
+++ b/test/unit/mission.spec.js
@@ -25,7 +25,7 @@ describe('Mission', () => {
         type: 'SolNode35',
       };
 
-      const mission = new Mission(data, 'en');
+      const mission = new Mission(data);
 
       assert.strictEqual(mission.node, 'Arcadia (Mars)');
       assert.strictEqual(mission.nodeKey, data.type);
diff --git a/test/unit/mock.spec.js b/test/unit/mock.spec.js
index ca244c3..93d0ab0 100644
--- a/test/unit/mock.spec.js
+++ b/test/unit/mock.spec.js
@@ -11,8 +11,8 @@ describe('Mock ProfileParser', () => {
     it('should handle real data', function () {
       this.timeout(20000);
 
-      assert.isOk(new ProfileParser(ornstein, 'en'));
-      assert.isOk(new ProfileParser(tobiah, 'en'));
+      assert.isOk(new ProfileParser(ornstein));
+      assert.isOk(new ProfileParser(tobiah));
     });
   });
 });
diff --git a/test/unit/stats.spec.js b/test/unit/stats.spec.js
index aeb7cb7..0feb3b4 100644
--- a/test/unit/stats.spec.js
+++ b/test/unit/stats.spec.js
@@ -11,8 +11,8 @@ describe('Mock ProfileParser', () => {
     it('should handle real data', function () {
       this.timeout(10000);
 
-      assert.isOk(new Stats(ornstein.Stats, 'en'));
-      assert.isOk(new Stats(tobiah.Stats, 'en'));
+      assert.isOk(new Stats(ornstein.Stats));
+      assert.isOk(new Stats(tobiah.Stats));
     });
   });
 });
diff --git a/test/unit/xpinfo.spec.js b/test/unit/xpinfo.spec.js
index d0e78f4..ed22587 100644
--- a/test/unit/xpinfo.spec.js
+++ b/test/unit/xpinfo.spec.js
@@ -11,7 +11,7 @@ describe('XpInfo', () => {
         XP: 785691,
       };
 
-      const xp = new XpInfo(data, 'en');
+      const xp = new XpInfo(data);
 
       assert.strictEqual(xp.uniqueName, '/Lotus/Weapons/Grineer/LongGuns/GrineerAssaultRifle/TwinGrakatas');
       assert.strictEqual(xp.item.name, 'Twin Grakatas');