diff --git a/core/src/main/resources/hudson/security/GlobalMatrixAuthorizationStrategy/help-user-group.jelly b/core/src/main/resources/hudson/security/GlobalMatrixAuthorizationStrategy/help-user-group.jelly
index 792ec870a92e4590d719c718a11d776fe58d6820..194301ba461e45733bf65555ab333fffb87193ed 100644
--- a/core/src/main/resources/hudson/security/GlobalMatrixAuthorizationStrategy/help-user-group.jelly
+++ b/core/src/main/resources/hudson/security/GlobalMatrixAuthorizationStrategy/help-user-group.jelly
@@ -1,3 +1,4 @@
+<?jelly escape-by-default='true'?>
 <l:ajax xmlns:l="/lib/layout">
   <div>
     Different security realm has different conventions about group names.
diff --git a/core/src/main/resources/hudson/security/GlobalMatrixAuthorizationStrategy/help-user-group_ja.jelly b/core/src/main/resources/hudson/security/GlobalMatrixAuthorizationStrategy/help-user-group_ja.jelly
index 3970988f3fcd59709cc3feeb50c3e082f7b3a215..39bd6e2abc15423466f7cbc99e370530eac456e1 100644
--- a/core/src/main/resources/hudson/security/GlobalMatrixAuthorizationStrategy/help-user-group_ja.jelly
+++ b/core/src/main/resources/hudson/security/GlobalMatrixAuthorizationStrategy/help-user-group_ja.jelly
@@ -1,3 +1,4 @@
+<?jelly escape-by-default='true'?>
 <l:ajax xmlns:l="/lib/layout">
 <div>
   ユーザー情報の取得先によってグループ名は異なる記法が使われることがあります。