diff --git a/actionpack/lib/action_view/template/resolver.rb b/actionpack/lib/action_view/template/resolver.rb
index f1916a1a3f75b..b644890f145ce 100644
--- a/actionpack/lib/action_view/template/resolver.rb
+++ b/actionpack/lib/action_view/template/resolver.rb
@@ -164,7 +164,7 @@ def build_query(path, details)
     end
 
     def escape_entry(entry)
-      entry.gsub(/(\*|\[|\]|\{|\}|\?)/, "\\\\\\1")
+      entry.gsub(/[*?{}\[\]]/, '\\\\\\&')
     end
 
     # Returns the file mtime from the filesystem.