diff --git a/device-types/TrippLite/ULTRABLOK428.yaml b/device-types/TrippLite/ULTRABLOK428.yaml
index f94ed8156..c09a830b7 100644
--- a/device-types/TrippLite/ULTRABLOK428.yaml
+++ b/device-types/TrippLite/ULTRABLOK428.yaml
@@ -1,4 +1,4 @@
-manufacturer: TrippLite
+manufacturer: Tripp-Lite
 model: ULTRABLOK428
 slug: ultrablok428
 u_height: 0