diff --git a/src/cocoa/evtloop.mm b/src/cocoa/evtloop.mm
index 7981fd26ee..de848b00e3 100644
--- a/src/cocoa/evtloop.mm
+++ b/src/cocoa/evtloop.mm
@@ -163,7 +163,8 @@ bool wxGUIEventLoop::YieldFor(long eventsToProcess)
         the main thread waits and then notify the main thread by posting
         an event.
      */
-    ProcessPendingEvents();
+    if (wxTheApp)
+        wxTheApp->ProcessPendingEvents();
 
 #if wxUSE_LOG
     // let the logs be flashed again
diff --git a/src/msw/evtloop.cpp b/src/msw/evtloop.cpp
index d452e18d3a..81276cfaee 100644
--- a/src/msw/evtloop.cpp
+++ b/src/msw/evtloop.cpp
@@ -503,7 +503,8 @@ bool wxGUIEventLoop::YieldFor(long eventsToProcess)
     }
 
     // if there are pending events, we must process them.
-    ProcessPendingEvents();
+    if (wxTheApp)
+        wxTheApp->ProcessPendingEvents();
 
     // put back unprocessed events in the queue
     DWORD id = GetCurrentThreadId();