diff --git a/device-types/Opengear/CM8148-10G.yaml b/device-types/Opengear/CM8148-10G.yaml
index c7ddb748..054c5faf 100644
--- a/device-types/Opengear/CM8148-10G.yaml
+++ b/device-types/Opengear/CM8148-10G.yaml
@@ -3,7 +3,7 @@ manufacturer: Opengear
 model: CM8148-10G
 slug: opengear-cm8148-10g
 part_number: CM8148-10G
-u_height: 2
+u_height: 1
 is_full_depth: false
 comments: CM8148 with built-in Dual Power Supplies & 10G SFP slots.
 console-ports:
diff --git a/device-types/Opengear/CM8148.yaml b/device-types/Opengear/CM8148.yaml
index 5cd95a47..6f812832 100644
--- a/device-types/Opengear/CM8148.yaml
+++ b/device-types/Opengear/CM8148.yaml
@@ -3,7 +3,7 @@ manufacturer: Opengear
 model: CM8148
 slug: opengear-cm8148
 part_number: CM8148
-u_height: 2
+u_height: 1
 is_full_depth: false
 comments: CM8148 with built-in Dual Power Supplies.
 console-ports: