diff --git a/tests/controls/spinctrldbltest.cpp b/tests/controls/spinctrldbltest.cpp
index 4406fa5ae2..dcc6d09e08 100644
--- a/tests/controls/spinctrldbltest.cpp
+++ b/tests/controls/spinctrldbltest.cpp
@@ -123,6 +123,7 @@ void SpinCtrlDoubleTestCase::Wrap()
     wxUIActionSimulator sim;
 
     m_spin->SetFocus();
+    wxYield();
 
     sim.Char(WXK_DOWN);
 
@@ -203,6 +204,7 @@ void SpinCtrlDoubleTestCase::Increment()
     wxUIActionSimulator sim;
 
     m_spin->SetFocus();
+    wxYield();
 
     sim.Char(WXK_UP);
 
diff --git a/tests/controls/spinctrltest.cpp b/tests/controls/spinctrltest.cpp
index 1ef3068a14..037a46918a 100644
--- a/tests/controls/spinctrltest.cpp
+++ b/tests/controls/spinctrltest.cpp
@@ -125,6 +125,7 @@ void SpinCtrlTestCase::Arrows()
     wxUIActionSimulator sim;
 
     m_spin->SetFocus();
+    wxYield();
 
     sim.Char(WXK_UP);
 
@@ -154,6 +155,7 @@ void SpinCtrlTestCase::Wrap()
     wxUIActionSimulator sim;
 
     m_spin->SetFocus();
+    wxYield();
 
     sim.Char(WXK_DOWN);