1 files changed, 2 insertions, 0 deletions
diff --git a/state.cpp b/state.cpp
index 99fa36fc..e2201f24 100644
--- a/state.cpp
+++ b/state.cpp
@@ -20,9 +20,11 @@
  * State test functions.
  */
 
+// Make sure boost/asio.hpp is included before windows.h.
 #include <boost/asio.hpp>
 #include <boost/filesystem/operations.hpp>
 #include <boost/test/unit_test.hpp>
+
 #include "JsonSpiritHeaders.h"
 #include <libdevcore/CommonIO.h>
 #include <libethereum/CanonBlockChain.h>