diff --git a/changelog.d/promex.add b/changelog.d/promex.add
deleted file mode 100644
index 1daaf7e4e..000000000
--- a/changelog.d/promex.add
+++ /dev/null
@@ -1 +0,0 @@
-Add PromEx to replace the prometheus library
diff --git a/changelog.d/promex.change b/changelog.d/promex.change
new file mode 100644
index 000000000..6c1571c54
--- /dev/null
+++ b/changelog.d/promex.change
@@ -0,0 +1 @@
+Change the prometheus library to PromEx.