diff --git a/en/application-dev/device-usage-statistics/device-usage-statistics-dev-guide.md b/en/application-dev/device-usage-statistics/device-usage-statistics-dev-guide.md
index ed6d64d2f532114c44220f493fcdce9180d0aa1f..acae0ce4f31aef0e4af1c35dc4ea763556d2aba8 100644
--- a/en/application-dev/device-usage-statistics/device-usage-statistics-dev-guide.md
+++ b/en/application-dev/device-usage-statistics/device-usage-statistics-dev-guide.md
@@ -1,4 +1,4 @@
-## Device Usage Statistics Development
+# Device Usage Statistics Development
 
 ## When to Use