diff --git a/fhem/www/images/default/open.png b/fhem/www/images/default/shutter_closed_big.png
similarity index 100%
rename from fhem/www/images/default/open.png
rename to fhem/www/images/default/shutter_closed_big.png
diff --git a/fhem/www/images/default/open_G.png b/fhem/www/images/default/shutter_open_big.png
similarity index 100%
rename from fhem/www/images/default/open_G.png
rename to fhem/www/images/default/shutter_open_big.png