diff --git a/reactos/include/xdk/winnt_old.h b/reactos/include/xdk/winnt_old.h
index 09033e624ef..a13ce8c65bd 100644
--- a/reactos/include/xdk/winnt_old.h
+++ b/reactos/include/xdk/winnt_old.h
@@ -335,6 +335,7 @@
 #define THREAD_SET_THREAD_TOKEN    128
 #define THREAD_IMPERSONATE    256
 #define THREAD_DIRECT_IMPERSONATION    0x200
+#define THREAD_QUERY_LIMITED_INFORMATION 0x0800
 #define THREAD_ALL_ACCESS (STANDARD_RIGHTS_REQUIRED|SYNCHRONIZE|0x3FF)
 #define MUTANT_QUERY_STATE    0x0001
 #define MUTANT_ALL_ACCESS    (STANDARD_RIGHTS_REQUIRED|SYNCHRONIZE|MUTANT_QUERY_STATE)