diff --git a/reactos/iface/addsys/w32ksvc.db b/reactos/iface/addsys/w32ksvc.db
index 093a6cf684a..43b4acf34c1 100644
--- a/reactos/iface/addsys/w32ksvc.db
+++ b/reactos/iface/addsys/w32ksvc.db
@@ -553,3 +553,5 @@ NtUserGetDesktopWindow			0
 # ReactOS only system calls
 NtUserAcquireOrReleaseInputOwnership    1
 NtUserGetWindowThreadProcessId          2
+NtUserGetQueueStatus                    1
+
diff --git a/reactos/include/win32k/ntuser.h b/reactos/include/win32k/ntuser.h
index e363a3dd775..2a7d5fb5a96 100644
--- a/reactos/include/win32k/ntuser.h
+++ b/reactos/include/win32k/ntuser.h
@@ -1781,6 +1781,9 @@ NtUserYieldTask(VOID);
 DWORD STDCALL
 NtUserGetWindowThreadProcessId(HWND hWnd, LPDWORD UnsafePid);
 
+DWORD STDCALL
+NtUserGetQueueStatus(BOOL ClearChanges);
+
 #endif /* __WIN32K_NTUSER_H */
 
 /* EOF */