diff --git a/sys/src/cmd/ip/ftpd.c b/sys/src/cmd/ip/ftpd.c
index 3f0ee55cd..e3d52f8c2 100644
--- a/sys/src/cmd/ip/ftpd.c
+++ b/sys/src/cmd/ip/ftpd.c
@@ -491,7 +491,7 @@ optscmd(char *arg)
 	}
 	if(p = strchr(arg, ' '))
 		*p = 0;
-	if(cistrcmp(arg, "UTF-8") == 0){
+	if(cistrcmp(arg, "UTF-8") == 0 || cistrcmp(arg, "UTF8") == 0){
 		reply("200 Command okay");
 		return 0;
 	}