diff --git a/builds/msvc/libzmq/libzmq.vcproj b/builds/msvc/libzmq/libzmq.vcproj
index c917609a..e9144142 100644
--- a/builds/msvc/libzmq/libzmq.vcproj
+++ b/builds/msvc/libzmq/libzmq.vcproj
@@ -225,6 +225,10 @@
 				RelativePath="..\..\..\src\lb.cpp"
 				>
 			</File>
+			<File
+				RelativePath="..\..\..\src\msg_store.cpp"
+				>
+			</File>
 			<File
 				RelativePath="..\..\..\src\object.cpp"
 				>
@@ -471,6 +475,10 @@
 				RelativePath="..\..\..\src\msg_content.hpp"
 				>
 			</File>
+			<File
+				RelativePath="..\..\..\src\msg_store.hpp"
+				>
+			</File>
 			<File
 				RelativePath="..\..\..\src\mutex.hpp"
 				>
diff --git a/src/msg_store.cpp b/src/msg_store.cpp
index f023d969..1a5f965b 100644
--- a/src/msg_store.cpp
+++ b/src/msg_store.cpp
@@ -26,6 +26,8 @@
 #include <sstream>
 #include <algorithm>
 
+#include "platform.hpp"
+
 #ifdef ZMQ_HAVE_WINDOWS
 #include <io.h>
 #else