diff --git a/libcontainer/process_linux.go b/libcontainer/process_linux.go
index fcbb54a3e..18a5a2bfb 100644
--- a/libcontainer/process_linux.go
+++ b/libcontainer/process_linux.go
@@ -871,6 +871,7 @@ func sendContainerProcessState(listenerPath string, state *specs.ContainerProces
 	if err != nil {
 		return fmt.Errorf("failed to connect with seccomp agent specified in the seccomp profile: %w", err)
 	}
+	defer conn.Close()
 
 	socket, err := conn.(*net.UnixConn).File()
 	if err != nil {