diff --git a/index.html b/index.html
index 09ce159fc93a393f566f13a2d82690f8d6ae34f5..fae667c72ebd02c4bc77bd9394c264baa8b5e32d 100644
--- a/index.html
+++ b/index.html
@@ -84,7 +84,7 @@
       <form class="pp-donate" action="https://www.paypal.com/cgi-bin/webscr" method="post" target="_blank">
         <input type="hidden" name="cmd" value="_s-xclick">
         <input type="hidden" name="hosted_button_id" value="W59BD72T97DVC">
-        <button name="submit"><img src="meta/icon_PP.svg">Donate</button>
+        <button name="submit"><img src="meta/icon_pp.svg">Donate</button>
         <img alt="" border="0" src="https://www.paypalobjects.com/en_US/i/scr/pixel.gif" width="1" height="1">
       </form>