diff --git a/.github/ISSUE_TEMPLATE/1_user_support.md b/.github/ISSUE_TEMPLATE/1_user_support.md
index 66d9989..24705b2 100644
--- a/.github/ISSUE_TEMPLATE/1_user_support.md
+++ b/.github/ISSUE_TEMPLATE/1_user_support.md
@@ -6,6 +6,8 @@ labels: support
 assignees: peaceiris
 ---
 
+**Note that an issue which does not follow the template will be closed silently.**
+
 ## Check list before opening this issue
 
 - [ ] I read the latest README of this repository.
diff --git a/.github/ISSUE_TEMPLATE/2_bug_report.md b/.github/ISSUE_TEMPLATE/2_bug_report.md
index 46dee56..2f5f1e4 100644
--- a/.github/ISSUE_TEMPLATE/2_bug_report.md
+++ b/.github/ISSUE_TEMPLATE/2_bug_report.md
@@ -7,6 +7,8 @@ assignees: peaceiris
 
 ---
 
+**Note that an issue which does not follow the template will be closed silently.**
+
 ## Describe the bug
 
 A clear and concise description of what the bug is.
diff --git a/.github/ISSUE_TEMPLATE/3_proposal.md b/.github/ISSUE_TEMPLATE/3_proposal.md
index 12a0a0f..d8ccef2 100644
--- a/.github/ISSUE_TEMPLATE/3_proposal.md
+++ b/.github/ISSUE_TEMPLATE/3_proposal.md
@@ -7,6 +7,8 @@ assignees: peaceiris
 
 ---
 
+**Note that an issue which does not follow the template will be closed silently.**
+
 ## Is your feature request related to a problem? Please describe.
 
 A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]