diff --git a/radiant/mainframe.cpp b/radiant/mainframe.cpp
index 85aaaee7..a91157be 100644
--- a/radiant/mainframe.cpp
+++ b/radiant/mainframe.cpp
@@ -184,6 +184,9 @@ void VFS_Destroy()
 
 // Home Paths
 
+#ifdef WIN32
+#include <shlobj.h>
+#endif
 void HomePaths_Realise()
 {
 #if defined(POSIX)