diff --git a/src/add-ons/kernel/network/protocols/udp/udp.cpp b/src/add-ons/kernel/network/protocols/udp/udp.cpp
index 9fd4327604..97926b1950 100644
--- a/src/add-ons/kernel/network/protocols/udp/udp.cpp
+++ b/src/add-ons/kernel/network/protocols/udp/udp.cpp
@@ -965,6 +965,8 @@ status_t
 UdpEndpoint::Close()
 {
 	TRACE_EP("Close()");
+	fSocket->error = EBADF;
+	WakeAll();
 	return B_OK;
 }