diff --git a/dlls/kernel32/time.c b/dlls/kernel32/time.c
index 08002afb132..90af8035b87 100644
--- a/dlls/kernel32/time.c
+++ b/dlls/kernel32/time.c
@@ -148,7 +148,7 @@ static int TIME_DayLightCompareDate( const SYSTEMTIME *date,
  *      TIME_ZONE_ID_STANDARD   Current time is standard time
  *      TIME_ZONE_ID_DAYLIGHT   Current time is dayligh saving time
  */
-static BOOL TIME_CompTimeZoneID ( const TIME_ZONE_INFORMATION *pTZinfo,
+static DWORD TIME_CompTimeZoneID ( const TIME_ZONE_INFORMATION *pTZinfo,
     FILETIME *lpFileTime, BOOL islocal )
 {
     int ret;