diff --git a/cfg-mencoder.h b/cfg-mencoder.h
index 175d77a6c4..f6c69a8e14 100644
--- a/cfg-mencoder.h
+++ b/cfg-mencoder.h
@@ -186,7 +186,7 @@ m_option_t of_conf[]={
 	{"rawvideo", &out_file_format, CONF_TYPE_FLAG, 0, 0, MUXER_TYPE_RAWVIDEO, NULL},
 	{"help", "\nAvailable output formats:\n"
 	"   avi      - Microsoft Audio/Video Interleaved\n"
-	"   mpeg     - MPEG-1 system stream format\n"
+	"   mpeg     - MPEG-1/2 system stream format\n"
 	"   rawvideo - (video only, one stream only) raw stream, no muxing\n"
 	"\n", CONF_TYPE_PRINT, CONF_NOCFG, 0, 0, NULL},
 	{NULL, NULL, 0, 0, 0, 0, NULL}