diff -Naur busybox.orig/networking/wget.c busybox/networking/wget.c
--- busybox.orig/networking/wget.c	2012-06-12 18:26:03.000000000 +0400
+++ busybox/networking/wget.c	2012-06-13 14:24:09.553797371 +0400
@@ -13,7 +13,7 @@
 //usage:	IF_FEATURE_WGET_LONG_OPTIONS(
 //usage:       "[-c|--continue] [-s|--spider] [-q|--quiet] [-O|--output-document FILE]\n"
 //usage:       "	[--header 'header: value'] [-Y|--proxy on/off] [-P DIR]\n"
-//usage:       "	[--no-check-certificate] [-U|--user-agent AGENT]"
+//usage:       "	[--no-check-certificate] [--no-cache] [-U|--user-agent AGENT]"
 //usage:			IF_FEATURE_WGET_TIMEOUT(" [-T SEC]") " URL..."
 //usage:	)
 //usage:	IF_NOT_FEATURE_WGET_LONG_OPTIONS(
@@ -878,6 +878,8 @@
 		"post-data\0"        Required_argument "\xfd"
 		/* Ignored (we don't do ssl) */
 		"no-check-certificate\0" No_argument   "\xfc"
+		/* Ignored (we don't support caching) */
+		"no-cache\0" No_argument   "\xfb"
 		;
 #endif