diff --git a/device-types/Cisco/WS-C3850-24T-S.yaml b/device-types/Cisco/WS-C3850-24T-S.yaml
index 34035744..a124033b 100644
--- a/device-types/Cisco/WS-C3850-24T-S.yaml
+++ b/device-types/Cisco/WS-C3850-24T-S.yaml
@@ -1,7 +1,7 @@
 ---
 manufacturer: Cisco
 model: Catalyst 3850-24T-S
-slug: ws-c3850-24t-S
+slug: ws-c3850-24t-s
 part_number: WS-C3850-24T-S
 is_full_depth: false
 u_height: 1