diff --git a/src/gui/thumbnail_thread.cpp b/src/gui/thumbnail_thread.cpp
index fe11bdc4..2d792934 100644
--- a/src/gui/thumbnail_thread.cpp
+++ b/src/gui/thumbnail_thread.cpp
@@ -57,7 +57,7 @@ ThumbnailThreadWorker::ThumbnailThreadWorker(ThumbnailThread* parent)
 wxThread::ExitCode ThumbnailThreadWorker::Entry() {
   while (true) {
     do {
-      Sleep(1);
+      wxMilliSleep(1);
     } while (stop);
     // get a request
     {
diff --git a/src/gui/web_request_window.cpp b/src/gui/web_request_window.cpp
index ee4c54e0..f000a594 100644
--- a/src/gui/web_request_window.cpp
+++ b/src/gui/web_request_window.cpp
@@ -59,6 +59,7 @@ WebRequestWindow::WebRequestWindow(Window* parent, const String& url, bool sizer
   });
 
   // start request
+  wxMilliSleep(70); // make sure we don't DDoS anyone
   request.Start();
 }