diff --git a/model/ndn-app-face.cpp b/model/ndn-app-face.cpp
index 9759771..fc301cb 100644
--- a/model/ndn-app-face.cpp
+++ b/model/ndn-app-face.cpp
@@ -53,6 +53,7 @@
 void
 AppFace::close()
 {
+  this->fail("Close connection");
 }
 
 void