diff --git a/model/ccnx-pit-entry.h b/model/ccnx-pit-entry.h
index fd426f5..93e4869 100644
--- a/model/ccnx-pit-entry.h
+++ b/model/ccnx-pit-entry.h
@@ -205,6 +205,13 @@
    */
   bool
   AreAllOutgoingInVain () const;
+
+  /*
+   * @brief Similar to AreAllOutgoingInVain, but ignores `face`
+   * \see AreAllOutgoingInVain
+   **/
+  bool
+  AreTherePromisingOutgoingFacesExcept (Ptr<CcnxFace> face) const;
   
 protected: