diff --git a/src/apps.js b/src/apps.js
index 433a9289f..c5e1b26a6 100644
--- a/src/apps.js
+++ b/src/apps.js
@@ -635,7 +635,7 @@ function install(data, user, auditSource, callback) {
                 if (error && error.reason === DatabaseError.NOT_FOUND) return callback(new AppsError(AppsError.NOT_FOUND, error.message));
                 if (error) return callback(new AppsError(AppsError.INTERNAL_ERROR, error));
 
-                appstore.purchase(appId, { appStoreId: appStoreId, manifestId: manifest.id }, function (appstoreError) {
+                appstore.purchase(appId, { appstoreId: appStoreId, manifestId: manifest.id }, function (appstoreError) {
                     // if purchase failed, rollback the appdb record
                     if (appstoreError) {
                         appdb.del(appId, function (error) {
@@ -1089,7 +1089,7 @@ function uninstall(appId, auditSource, callback) {
     get(appId, function (error, app) {
         if (error) return callback(error);
 
-        appstore.unpurchase(appId, { appStoreId: app.appStoreId, manifestId: app.manifest.id }, function (error) {
+        appstore.unpurchase(appId, { appstoreId: app.appStoreId, manifestId: app.manifest.id }, function (error) {
             if (error && error.reason === AppstoreError.NOT_FOUND) return callback(new AppsError(AppsError.NOT_FOUND));
             if (error && error.reason === AppstoreError.BILLING_REQUIRED) return callback(new AppsError(AppsError.BILLING_REQUIRED, error.message));
             if (error && error.reason === AppstoreError.EXTERNAL_ERROR) return callback(new AppsError(AppsError.EXTERNAL_ERROR, error.message));
diff --git a/src/appstore.js b/src/appstore.js
index 77dab9124..2777deff5 100644
--- a/src/appstore.js
+++ b/src/appstore.js
@@ -98,7 +98,7 @@ function isFreePlan(subscription) {
 function purchase(appId, data, callback) {
     assert.strictEqual(typeof appId, 'string');
     assert.strictEqual(typeof data, 'object');
-    assert(data.appStoreId || data.manifestId);
+    assert(data.appstoreId || data.manifestId);
     assert.strictEqual(typeof callback, 'function');
 
     getAppstoreConfig(function (error, appstoreConfig) {
@@ -121,7 +121,7 @@ function purchase(appId, data, callback) {
 function unpurchase(appId, data, callback) {
     assert.strictEqual(typeof appId, 'string');
     assert.strictEqual(typeof data, 'object');
-    assert(data.appStoreId || data.manifestId);
+    assert(data.appstoreId || data.manifestId);
     assert.strictEqual(typeof callback, 'function');
 
     getAppstoreConfig(function (error, appstoreConfig) {
diff --git a/src/test/appstore-test.js b/src/test/appstore-test.js
index ab151d8ac..dba3f6b1e 100644
--- a/src/test/appstore-test.js
+++ b/src/test/appstore-test.js
@@ -129,7 +129,7 @@ describe('Appstore', function () {
             .post(`/api/v1/users/${APPSTORE_USER_ID}/cloudrons/${CLOUDRON_ID}/apps/${APP_ID}?accessToken=${APPSTORE_TOKEN}`, function () { return true; })
             .reply(201, {});
 
-        appstore.purchase(APP_ID, { appStoreId: APPSTORE_APP_ID, manifestId: APPSTORE_APP_ID }, function (error) {
+        appstore.purchase(APP_ID, { appstoreId: APPSTORE_APP_ID, manifestId: APPSTORE_APP_ID }, function (error) {
             expect(error).to.not.be.ok();
             expect(scope1.isDone()).to.be.ok();
 
@@ -146,7 +146,7 @@ describe('Appstore', function () {
             .delete(`/api/v1/users/${APPSTORE_USER_ID}/cloudrons/${CLOUDRON_ID}/apps/${APP_ID}?accessToken=${APPSTORE_TOKEN}`, function () { return true; })
             .reply(204, {});
 
-        appstore.unpurchase(APP_ID, { appStoreId: APPSTORE_APP_ID, manifestId: APPSTORE_APP_ID }, function (error) {
+        appstore.unpurchase(APP_ID, { appstoreId: APPSTORE_APP_ID, manifestId: APPSTORE_APP_ID }, function (error) {
             expect(error).to.not.be.ok();
             expect(scope1.isDone()).to.be.ok();
             expect(scope2.isDone()).to.not.be.ok();
@@ -164,7 +164,7 @@ describe('Appstore', function () {
             .delete(`/api/v1/users/${APPSTORE_USER_ID}/cloudrons/${CLOUDRON_ID}/apps/${APP_ID}?accessToken=${APPSTORE_TOKEN}`, function () { return true; })
             .reply(204, {});
 
-        appstore.unpurchase(APP_ID, { appStoreId: APPSTORE_APP_ID, manifestId: APPSTORE_APP_ID }, function (error) {
+        appstore.unpurchase(APP_ID, { appstoreId: APPSTORE_APP_ID, manifestId: APPSTORE_APP_ID }, function (error) {
             expect(error).to.not.be.ok();
             expect(scope1.isDone()).to.be.ok();
             expect(scope2.isDone()).to.be.ok();