diff --git a/reactos/dll/win32/advapi32/misc/sysfunc.c b/reactos/dll/win32/advapi32/misc/sysfunc.c
index 7003684a734..2dfb17af0d4 100644
--- a/reactos/dll/win32/advapi32/misc/sysfunc.c
+++ b/reactos/dll/win32/advapi32/misc/sysfunc.c
@@ -564,7 +564,7 @@ SystemFunction035(LPCSTR lpszDllFilePath)
  * RETURNS
  *  Always TRUE in my tests
  */
-BOOL
+BOOLEAN
 WINAPI
 SystemFunction036(PVOID pbBuffer, ULONG dwLen)
 {