diff --git a/plugins/mark_button/init.php b/plugins/mark_button/init.php
index 103475251..4cdff53d0 100644
--- a/plugins/mark_button/init.php
+++ b/plugins/mark_button/init.php
@@ -26,7 +26,7 @@ class Mark_Button extends Plugin {
 					onclick='toggleMark($id)'>";
 			} else {
 				$marked_pic = "<img
-					src=\"images/mark_unset.svg\"
+					src=\"images/mark_unset.png\"
 					class=\"markedPic\" alt=\"Star article\"
 					onclick='toggleMark($id)'>";
 			}