diff --git a/.github/pull_request_template.md b/.github/pull_request_template.md
index 9d85010..1c3885f 100644
--- a/.github/pull_request_template.md
+++ b/.github/pull_request_template.md
@@ -1,7 +1,7 @@
 <!--
 Please don't open an issue when submit PR.
 
-But if there is already a related issue, please put it's number here. E.g. #123 -->
+But if there is already a related issue, please put it's number here. E.g. #123 or N/A -->
 Related Issue:
 
 ## New Behavior