--- uget-1.5.0.1/src/ug_url.c.debug	2009-11-30 10:55:28.000000000 +0900
+++ uget-1.5.0.1/src/ug_url.c	2010-01-22 18:07:07.000000000 +0900
@@ -184,6 +184,8 @@
 	if (str_len == -1)
 		str_len = strlen (str);
 	result = g_uri_unescape_segment (str, str+str_len, NULL);
+	if (!result)
+		result = g_strndup (str, str_len);
 
 	// check encoding
 	if (g_utf8_validate (result, -1, NULL) == FALSE) {