diff --git a/content/en/docs/reference/glossary/Preemption.md b/content/en/docs/reference/glossary/preemption.md
similarity index 97%
rename from content/en/docs/reference/glossary/Preemption.md
rename to content/en/docs/reference/glossary/preemption.md
index c94d9a3a3e..ac1334c979 100644
--- a/content/en/docs/reference/glossary/Preemption.md
+++ b/content/en/docs/reference/glossary/preemption.md
@@ -1,6 +1,6 @@
 ---
 title: Preemption
-id: Preemption
+id: preemption
 date: 2019-01-31
 full_link: https://kubernetes.io/docs/concepts/configuration/pod-priority-preemption/#preemption
 short_description: >