diff --git a/lpc_aspeed.cpp b/lpc_aspeed.cpp
index dabea8a..50ce2a9 100644
--- a/lpc_aspeed.cpp
+++ b/lpc_aspeed.cpp
@@ -43,6 +43,10 @@
     return std::make_unique<LpcMapperAspeed>(regionAddress, regionSize);
 }
 
+void LpcMapperAspeed::close()
+{
+}
+
 std::pair<std::uint32_t, std::uint32_t>
     LpcMapperAspeed::mapWindow(std::uint32_t address, std::uint32_t length)
 {