diff --git a/drivers/wmi/wmilib.c b/drivers/wmi/wmilib.c
index 1490374da25..0fd0fa6bc32 100644
--- a/drivers/wmi/wmilib.c
+++ b/drivers/wmi/wmilib.c
@@ -11,6 +11,7 @@
 
 #include <stdio.h>
 #include <ntddk.h>
+#include <wmlib.h>
 
 #define NDEBUG
 #include <debug.h>