diff --git a/tests/controls/listbasetest.cpp b/tests/controls/listbasetest.cpp
index 47d349c10e..bfb59e0a3e 100644
--- a/tests/controls/listbasetest.cpp
+++ b/tests/controls/listbasetest.cpp
@@ -263,6 +263,7 @@ void ListBaseTestCase::KeyDown()
     wxUIActionSimulator sim;
 
     list->SetFocus();
+    wxYield();
     sim.Text("aAbB");
     wxYield();