diff --git a/src/@ionic-native/plugins/file/index.ts b/src/@ionic-native/plugins/file/index.ts
index 63d1021b9..c330d0752 100644
--- a/src/@ionic-native/plugins/file/index.ts
+++ b/src/@ionic-native/plugins/file/index.ts
@@ -159,6 +159,12 @@ export interface Entry {
    */
   toURL(): string;
 
+  /**
+   * Return a URL that can be passed across the bridge to identify this entry.
+   * @return string URL that can be passed across the bridge to identify this entry
+   */
+  toInternalURL(): string;
+
   /**
    * Deletes a file or directory. It is an error to attempt to delete a directory that is not empty. It is an error to attempt to delete the root directory of a filesystem.
    * @param successCallback A callback that is called on success.