diff --git a/httplib.h b/httplib.h
index 12c7b85..761481b 100644
--- a/httplib.h
+++ b/httplib.h
@@ -560,10 +560,9 @@ public:
     {
       std::unique_lock<std::mutex> lock(mutex_);
       shutdown_ = true;
+      cond_.notify_all();
     }
 
-    cond_.notify_all();
-
     // Join...
     for (auto &t : threads_) {
       t.join();