diff --git a/exvs2hook/dllmain.c b/exvs2hook/dllmain.c
index dedba41..7601810 100644
--- a/exvs2hook/dllmain.c
+++ b/exvs2hook/dllmain.c
@@ -52,7 +52,7 @@ static DWORD CALLBACK exvs2_pre_startup(void)
         ExitProcess(EXIT_FAILURE);
     }
 
-    hr = qr_hook_init(&exvs2_hook_cfg.qr, 1);
+    hr = bpreader_init(&exvs2_hook_cfg.reader, 4);
 
     if (FAILED(hr)) {
         ExitProcess(EXIT_FAILURE);