diff --git a/src/App.h b/src/App.h
index 85b80fc..f61e3f5 100644
--- a/src/App.h
+++ b/src/App.h
@@ -280,12 +280,18 @@ public:
 
     /* Host, port, callback */
     TemplatedApp &&listen(std::string host, int port, fu2::unique_function<void(us_listen_socket *)> &&handler) {
+        if (!host.length()) {
+            return listen(port, std::move(handler));
+        }
         handler(httpContext->listen(host.c_str(), port, 0));
         return std::move(*this);
     }
 
     /* Host, port, options, callback */
     TemplatedApp &&listen(std::string host, int port, int options, fu2::unique_function<void(us_listen_socket *)> &&handler) {
+        if (!host.length()) {
+            return listen(port, options, std::move(handler));
+        }
         handler(httpContext->listen(host.c_str(), port, options));
         return std::move(*this);
     }
diff --git a/uSockets b/uSockets
index 5a4570e..8004157 160000
--- a/uSockets
+++ b/uSockets
@@ -1 +1 @@
-Subproject commit 5a4570eac1a699abe8b842972b1a807da8c40abe
+Subproject commit 8004157c8d8076b1e48943a812b904cc49e02ac2