diff --git a/reactos/lib/wdmguid/wdmguid.c b/reactos/lib/wdmguid/wdmguid.c
index 3c3fff42479..44a0383e7e3 100644
--- a/reactos/lib/wdmguid/wdmguid.c
+++ b/reactos/lib/wdmguid/wdmguid.c
@@ -7,4 +7,8 @@
 #include <wdmguid.h>
 #include <umpnpmgr/sysguid.h>
 
+/* FIXME: shouldn't go there! */
+DEFINE_GUID(GUID_DEVICE_SYS_BUTTON,
+  0x4AFA3D53L, 0x74A7, 0x11d0, 0xbe, 0x5e, 0x00, 0xA0, 0xC9, 0x06, 0x28, 0x57);
+
 /* EOF */