diff --git a/dll/win32/advapi32/CMakeLists.txt b/dll/win32/advapi32/CMakeLists.txt
index ff7961c492f..744dc098a10 100644
--- a/dll/win32/advapi32/CMakeLists.txt
+++ b/dll/win32/advapi32/CMakeLists.txt
@@ -2,9 +2,6 @@
 spec2def(advapi32.dll advapi32.spec ADD_IMPORTLIB)
 add_definitions(-D_ADVAPI32_)
 
-remove_definitions(-D_WIN32_WINNT=0x502)
-add_definitions(-D_WIN32_WINNT=0x600)
-
 include_directories(
     ${REACTOS_SOURCE_DIR}/sdk/include/reactos/idl
     ${REACTOS_SOURCE_DIR}/sdk/include/reactos/drivers/ksecdd
diff --git a/dll/win32/advapi32/wine/security.c b/dll/win32/advapi32/wine/security.c
index 54dd595d49b..449cbd354b4 100644
--- a/dll/win32/advapi32/wine/security.c
+++ b/dll/win32/advapi32/wine/security.c
@@ -17,6 +17,10 @@
 WINE_DEFAULT_DEBUG_CHANNEL(advapi);
 
 static BOOL ParseStringSidToSid(LPCWSTR StringSid, PSID pSid, LPDWORD cBytes);
+#ifdef __REACTOS__
+VOID WINAPI QuerySecurityAccessMask(SECURITY_INFORMATION,LPDWORD);
+VOID WINAPI SetSecurityAccessMask(SECURITY_INFORMATION,LPDWORD);
+#endif
 
 typedef struct _ACEFLAG
 {