diff --git a/WHATS_NEW b/WHATS_NEW
index 0096d1e8b..d2bdb5874 100644
--- a/WHATS_NEW
+++ b/WHATS_NEW
@@ -1,5 +1,6 @@
 Version 2.02.137 -
 =====================================
+  Avoid misleading error with -m is omitted with lvconvert to raid types.
 
 Version 2.02.136 - 28th November 2015
 =====================================
diff --git a/tools/lvconvert.c b/tools/lvconvert.c
index 72be45b45..b309b9e80 100644
--- a/tools/lvconvert.c
+++ b/tools/lvconvert.c
@@ -242,9 +242,9 @@ static int _check_conversion_type(struct cmd_context *cmd, const char *type_str)
 	if (!type_str || !*type_str)
 		return 1;
 
-	if (!strcmp(type_str, "mirror")) {
+	if (!strcmp(type_str, "mirror") || !strncmp(type_str, "raid", 4)) {
 		if (!arg_count(cmd, mirrors_ARG)) {
-			log_error("--type mirror requires -m/--mirrors");
+			log_error("Mirror and raid conversions require -m/--mirrors");
 			return 0;
 		}
 		return 1;