diff --git a/lib/manager/VirtualStoredFSManager.js b/lib/manager/VirtualStoredFSManager.js
index 32151844..d8c898b7 100644
--- a/lib/manager/VirtualStoredFSManager.js
+++ b/lib/manager/VirtualStoredFSManager.js
@@ -84,10 +84,8 @@ var SimpleVirtualStoredContentManager = (function (_super) {
     };
     SimpleVirtualStoredContentManager.prototype._allocate = function (options, _callback) {
         var callback = function (_1, _2) { return process.nextTick(function () { return _callback(_1, _2); }); };
-        if (!this.initialized) {
-            callback(new Error('SimpleVirtualStoredContentManager not initialized'), null);
-            return;
-        }
+        if (!this.initialized)
+            throw new Error('SimpleVirtualStoredContentManager not initialized');
         var uid = (++this.cid).toString(16);
         fs.open(path.join(this.storeFolderPath, uid), 'w+', function (e, fd) {
             if (e)
diff --git a/src/manager/VirtualStoredFSManager.ts b/src/manager/VirtualStoredFSManager.ts
index 2686a7f8..3bd9973b 100644
--- a/src/manager/VirtualStoredFSManager.ts
+++ b/src/manager/VirtualStoredFSManager.ts
@@ -116,10 +116,7 @@ export class SimpleVirtualStoredContentManager extends VirtualStoredContentManag
         const callback = (_1, _2) => process.nextTick(() => _callback(_1, _2));
 
         if(!this.initialized)
-        {
-            callback(new Error('SimpleVirtualStoredContentManager not initialized'), null);
-            return;
-        }
+            throw new Error('SimpleVirtualStoredContentManager not initialized');
         
         const uid = (++this.cid).toString(16);