diff --git a/include/class_IconTheme.inc b/include/class_IconTheme.inc
index c48df8da38d8f6ae9c1b6d36e7f3417819d247d3..54e2fb12133857b74d391e681829ff10421e8b1c 100644
--- a/include/class_IconTheme.inc
+++ b/include/class_IconTheme.inc
@@ -18,6 +18,8 @@
   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
 */
 
+class ThemeFileParsingException extends Exception {}
+
 class IconThemeDir
 {
   private $Size;