diff --git a/src/core/Core.js b/src/core/Core.js
index 8525c00f8..04f4521ea 100644
--- a/src/core/Core.js
+++ b/src/core/Core.js
@@ -41,6 +41,8 @@ export default class Core {
     this.emitter = new ee.EventEmitter()
 
     this.totalFilesSelectedCount = 0
+
+    this.selectedFiles = {}
   }
 
 /**