diff --git a/src/ims/in-memory-storage-lru.hpp b/src/ims/in-memory-storage-lru.hpp
index 3dd9dfe..67ce33a 100644
--- a/src/ims/in-memory-storage-lru.hpp
+++ b/src/ims/in-memory-storage-lru.hpp
@@ -40,7 +40,7 @@
   explicit
   InMemoryStorageLru(size_t limit = 10);
 
-  InMemoryStorageLru(boost::asio::io_service& ioService, size_t limit = 10);
+  InMemoryStorageLru(DummyIoService& ioService, size_t limit = 10);
 
 NDN_CXX_PUBLIC_WITH_TESTS_ELSE_PROTECTED:
   /** @brief Removes one Data packet from in-memory storage based on LRU, i.e. evict the least