diff --git a/reactos/include/psdk/mprapi.h b/reactos/include/psdk/mprapi.h
index 2eec3b93ad4..4e67ff0e8a2 100644
--- a/reactos/include/psdk/mprapi.h
+++ b/reactos/include/psdk/mprapi.h
@@ -21,7 +21,8 @@
 
 #include <lmcons.h>
 #include <ras.h>
-/* FIXME: #include <in6addr.h> */
+#include <in6addr.h>
+#include <wincrypt.h>
 
 #define MAX_DEVICE_NAME                 128
 #define MAX_DEVICETYPE_NAME              16