diff --git a/libs/ardour/audioengine.cc b/libs/ardour/audioengine.cc
index 7313362622..34971438ff 100644
--- a/libs/ardour/audioengine.cc
+++ b/libs/ardour/audioengine.cc
@@ -402,7 +402,7 @@ AudioEngine::request_backend_reset()
 void
 AudioEngine::do_reset_backend()
 {
-    SessionEvent::create_per_thread_pool (X_("Backend reset processing thread"), 512);
+    SessionEvent::create_per_thread_pool (X_("Backend reset processing thread"), 1024);
     
     Glib::Threads::Mutex::Lock guard (_reset_request_lock);