diff --git a/device-types/Cisco/WS-C3850-48F-S.yaml b/device-types/Cisco/WS-C3850-48F-S.yaml
index f394f4fb..6b56973f 100644
--- a/device-types/Cisco/WS-C3850-48F-S.yaml
+++ b/device-types/Cisco/WS-C3850-48F-S.yaml
@@ -1,7 +1,7 @@
 manufacturer: Cisco
 model: Catalyst 3850-48F IP Base
 slug: ws-c3850-48f-s
-part_number: WS-C3850-48F-s 
+part_number: WS-C3850-48F-S
 is_full_depth: false
 u_height: 1
 interfaces:
diff --git a/device-types/Cisco/WS-C3850-48P-E.yaml b/device-types/Cisco/WS-C3850-48P-E.yaml
index bccbe0b6..55880643 100644
--- a/device-types/Cisco/WS-C3850-48P-E.yaml
+++ b/device-types/Cisco/WS-C3850-48P-E.yaml
@@ -1,7 +1,7 @@
 manufacturer: Cisco
 model: Catalyst 3850-48P IP Services
 slug: ws-c3850-48p-e
-part_number: WS-C3850-48P-e 
+part_number: WS-C3850-48P-E
 is_full_depth: false
 u_height: 1
 interfaces: