'MiniIcon' should also not have an extension.

Signed-off-by: Michele Calgaro <michele.calgaro@yahoo.it>

krename/krename.desktop

@@ -2,7 +2,7 @@
 Type=Application
 Exec=krename -caption "%c" %i %m %U
 Icon=krename
-MiniIcon=krename.png
+MiniIcon=krename
 X-DocPath=krename/index.html
 Comment=A batch renamer
 Comment[de]=Ein Batch Umbenenner