diff --git a/src/ims/in-memory-storage.cpp b/src/ims/in-memory-storage.cpp
index 0dc7df7..ec9876f 100644
--- a/src/ims/in-memory-storage.cpp
+++ b/src/ims/in-memory-storage.cpp
@@ -88,7 +88,7 @@
   init();
 }
 
-InMemoryStorage::InMemoryStorage(boost::asio::io_service& ioService, size_t limit)
+InMemoryStorage::InMemoryStorage(DummyIoService& ioService, size_t limit)
   : m_limit(limit)
   , m_nPackets(0)
 {