diff --git a/libethereum/FileSystem.cpp b/libethereum/FileSystem.cpp
index c6a7aec1a..0633f3755 100644
--- a/libethereum/FileSystem.cpp
+++ b/libethereum/FileSystem.cpp
@@ -22,6 +22,7 @@
  */
 
 #include "FileSystem.h"
+#include "Common.h"
 
 #ifdef _WIN32
 #include <shlobj.h>