diff --git a/espeak-ng-data/voices/mb/mb-cn1 b/espeak-ng-data/voices/mb/mb-cn1
index e8a26b25..d524d398 100644
--- a/espeak-ng-data/voices/mb/mb-cn1
+++ b/espeak-ng-data/voices/mb/mb-cn1
@@ -1,4 +1,6 @@
 name chinese-mb-cn1
 language zh
 mbrola cn1 zh_phtrans
+pitch 100 280
+speed 90
 status testing