diff --git a/src/APNS.js b/src/APNS.js
index 5fc73ab0..85c97401 100644
--- a/src/APNS.js
+++ b/src/APNS.js
@@ -60,7 +60,7 @@ APNS.prototype.send = function(data, deviceTokens) {
 var generateNotification = function(coreData, expirationTime) {
   var notification = new apn.notification();
   var payload = {};
-  for (key in coreData) {
+  for (var key in coreData) {
     switch (key) {
       case 'alert':
         notification.setAlertText(coreData.alert);
diff --git a/src/Schema.js b/src/Schema.js
index 69c923dd..3656507a 100644
--- a/src/Schema.js
+++ b/src/Schema.js
@@ -43,13 +43,13 @@ var defaultColumns = {
     "GCMSenderId":      {type:'String'},
     "timeZone":         {type:'String'},
     "localeIdentifier": {type:'String'},
-    "badge":            {type:'Number'},
+    "badge":            {type:'Number'}
   },
   // The additional default columns for the _User collection (in addition to DefaultCols)
   _Role: {
     "name":  {type:'String'},
     "users": {type:'Relation',className:'_User'},
-    "roles": {type:'Relation',className:'_Role'},
+    "roles": {type:'Relation',className:'_Role'}
   },
   // The additional default columns for the _User collection (in addition to DefaultCols)
   _Session: {
@@ -58,9 +58,9 @@ var defaultColumns = {
     "installationId": {type:'String'},
     "sessionToken":   {type:'String'},
     "expiresAt":      {type:'Date'},
-    "createdWith":    {type:'Object'},
-  },
-}
+    "createdWith":    {type:'Object'}
+  }
+};
 
 // Valid classes must:
 // Be one of _User, _Installation, _Role, _Session OR
@@ -221,7 +221,7 @@ Schema.prototype.addClassIfNotExists = function(className, fields) {
       error: invalidClassNameMessage(className),
     });
   }
-  for (fieldName in fields) {
+  for (var fieldName in fields) {
     if (!fieldNameIsValid(fieldName)) {
       return Promise.reject({
         code: Parse.Error.INVALID_KEY_NAME,
@@ -240,18 +240,18 @@ Schema.prototype.addClassIfNotExists = function(className, fields) {
     _id: className,
     objectId: 'string',
     updatedAt: 'string',
-    createdAt: 'string',
+    createdAt: 'string'
   };
-  for (fieldName in defaultColumns[className]) {
-    validatedField = schemaAPITypeToMongoFieldType(defaultColumns[className][fieldName]);
+  for (var fieldName in defaultColumns[className]) {
+    var validatedField = schemaAPITypeToMongoFieldType(defaultColumns[className][fieldName]);
     if (validatedField.code) {
       return Promise.reject(validatedField);
     }
     mongoObject[fieldName] = validatedField.result;
   }
 
-  for (fieldName in fields) {
-    validatedField = schemaAPITypeToMongoFieldType(fields[fieldName]);
+  for (var fieldName in fields) {
+    var validatedField = schemaAPITypeToMongoFieldType(fields[fieldName]);
     if (validatedField.code) {
       return Promise.reject(validatedField);
     }
@@ -259,7 +259,6 @@ Schema.prototype.addClassIfNotExists = function(className, fields) {
   }
 
   var geoPoints = Object.keys(mongoObject).filter(key => mongoObject[key] === 'geopoint');
-
   if (geoPoints.length > 1) {
     return Promise.reject({
       code: Parse.Error.INCORRECT_TYPE,
@@ -278,7 +277,7 @@ Schema.prototype.addClassIfNotExists = function(className, fields) {
     }
     return Promise.reject(error);
   });
-}
+};
 
 // Returns a promise that resolves successfully to the new schema
 // object or fails with a reason.
diff --git a/src/classes.js b/src/classes.js
index 98e94871..f1400914 100644
--- a/src/classes.js
+++ b/src/classes.js
@@ -42,7 +42,7 @@ function handleFind(req) {
                    req.params.className, body.where, options)
     .then((response) => {
       if (response && response.results) {
-        for (result of response.results) {
+        for (var result of response.results) {
           if (result.sessionToken) {
             result.sessionToken = req.info.sessionToken || result.sessionToken;
           }
diff --git a/src/schemas.js b/src/schemas.js
index 6145b7e6..837224ab 100644
--- a/src/schemas.js
+++ b/src/schemas.js
@@ -34,8 +34,8 @@ function mongoFieldTypeToSchemaAPIType(type) {
 }
 
 function mongoSchemaAPIResponseFields(schema) {
-  fieldNames = Object.keys(schema).filter(key => key !== '_id' && key !== '_metadata');
-  response = fieldNames.reduce((obj, fieldName) => {
+  var fieldNames = Object.keys(schema).filter(key => key !== '_id' && key !== '_metadata');
+  var response = fieldNames.reduce((obj, fieldName) => {
     obj[fieldName] = mongoFieldTypeToSchemaAPIType(schema[fieldName])
     return obj;
   }, {});