diff --git a/go-sendxmpp.go b/go-sendxmpp.go
index 32c216a..4d5beca 100644
--- a/go-sendxmpp.go
+++ b/go-sendxmpp.go
@@ -68,7 +68,7 @@ func parseConfig(configPath string) (configuration, error) {
 	permissions := strconv.FormatInt(int64(perm), 8)
 	if permissions != "600" && permissions != "400" {
 		return output, errors.New("Wrong permissions for " + configPath + ": " +
-			permissions + " instead of 600.")
+			permissions + " instead of 400 or 600.")
 	}
 
 	// Open config file.