diff --git a/reactos/lib/cpl/timedate/timedate.c b/reactos/lib/cpl/timedate/timedate.c
index 5822a039af4..70c9301d8ff 100644
--- a/reactos/lib/cpl/timedate/timedate.c
+++ b/reactos/lib/cpl/timedate/timedate.c
@@ -462,7 +462,7 @@ GetAutoDaylightInfo(HWND hwnd)
   if (RegOpenKeyExW(HKEY_LOCAL_MACHINE,
 		    L"SYSTEM\\CurrentControlSet\\Control\\TimeZoneInformation",
 		    0,
-		    KEY_SET_VALUE,
+		    KEY_QUERY_VALUE,
 		    &hKey))
     return;