diff --git a/frankenphp.go b/frankenphp.go
index b87eb36..d7e3560 100644
--- a/frankenphp.go
+++ b/frankenphp.go
@@ -333,7 +333,7 @@ func Init(options ...Option) error {
 
 	shutdownWG.Add(1)
 	done = make(chan struct{})
-	requestChan = make(chan *http.Request)
+	requestChan = make(chan *http.Request, opt.numThreads)
 	initPHPThreads(opt.numThreads)
 
 	if C.frankenphp_init(C.int(opt.numThreads)) != 0 {