Index: src/os_win.c
==================================================================
--- src/os_win.c
+++ src/os_win.c
@@ -2700,11 +2700,11 @@
   assert( id!=0 );
   if( pFile->locktype>=RESERVED_LOCK ){
     rc = 1;
     OSTRACE(("TEST WR-LOCK %d %d (local)\n", pFile->h, rc));
   }else{
-    rc = winLockFile(&pFile->h, SQLITE_LOCKFILE_FLAGS, RESERVED_BYTE, 0, 1, 0);
+    rc = winLockFile(&pFile->h, SQLITE_LOCKFILEEX_FLAGS,RESERVED_BYTE, 0, 1, 0);
     if( rc ){
       winUnlockFile(&pFile->h, RESERVED_BYTE, 0, 1, 0);
     }
     rc = !rc;
     OSTRACE(("TEST WR-LOCK %d %d (remote)\n", pFile->h, rc));