diff --git a/tests/unit-tests/ims/in-memory-storage-fifo.t.cpp b/tests/unit-tests/ims/in-memory-storage-fifo.t.cpp
index a873de1..00cde40 100644
--- a/tests/unit-tests/ims/in-memory-storage-fifo.t.cpp
+++ b/tests/unit-tests/ims/in-memory-storage-fifo.t.cpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /*
- * Copyright (c) 2013-2017 Regents of the University of California.
+ * Copyright (c) 2013-2018 Regents of the University of California.
  *
  * This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
  *
@@ -73,6 +73,21 @@
   BOOST_CHECK(found2 == nullptr);
 }
 
+BOOST_AUTO_TEST_CASE(MemoryPoolSizeZeroBug) // Bug #4769
+{
+  InMemoryStorageFifo ims;
+
+  BOOST_CHECK_EQUAL(ims.getCapacity(), 16);
+  for (int i = 1; i < 5; ++i) {
+    ims.insert(*makeData(to_string(i)));
+    ims.erase(Name(to_string(i)));
+  }
+
+  BOOST_CHECK_EQUAL(ims.getCapacity(), 16);
+  ims.insert(*makeData("/5"));
+  BOOST_CHECK_EQUAL(ims.getCapacity(), 16);
+}
+
 BOOST_AUTO_TEST_SUITE_END() // TestInMemoryStorageFifo
 BOOST_AUTO_TEST_SUITE_END() // Ims