diff -urNp ristretto-0.0.93.orig/src/thumbnailer.c ristretto-0.0.93/src/thumbnailer.c
--- ristretto-0.0.93.orig/src/thumbnailer.c     2011-02-28 19:45:45.000000000 +0100
+++ ristretto-0.0.93/src/thumbnailer.c  2011-03-08 23:18:11.000000000 +0100
@@ -18,6 +18,7 @@

 #include <config.h>

+#include <string.h>
 #include <glib.h>
 #include <gtk/gtk.h>
 #include <gio/gio.h>