diff --git a/include/wx/msw/evtloop.h b/include/wx/msw/evtloop.h
index 934e3cfef5..b45d932f65 100644
--- a/include/wx/msw/evtloop.h
+++ b/include/wx/msw/evtloop.h
@@ -104,6 +104,7 @@ public:
     virtual bool Dispatch();
     virtual int DispatchTimeout(unsigned long timeout);
     virtual void WakeUp();
+    virtual bool YieldFor(long WXUNUSED(eventsToProcess)) { return true; }
 
     // MSW-specific function to process a single message
     virtual void ProcessMessage(WXMSG *msg);
diff --git a/src/motif/evtloop.cpp b/src/motif/evtloop.cpp
index cd7800a380..a3994827f8 100644
--- a/src/motif/evtloop.cpp
+++ b/src/motif/evtloop.cpp
@@ -137,7 +137,7 @@ void wxGUIEventLoop::Exit(int rc)
     ::wxBreakDispatch();
 }
 
-bool wxGUIEventLoop::YieldFor(ong eventsToProcess)
+bool wxGUIEventLoop::YieldFor(long eventsToProcess)
 {
     m_isInsideYield = true;
     m_eventsToProcessInsideYield = eventsToProcess;