diff --git a/CHANGELOG.md b/CHANGELOG.md
index ff7d461726..569b3ef203 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -16,6 +16,10 @@
   [Matthew Healy](https://github.com/matthew-healy)
   [#2663](https://github.com/realm/SwiftLint/pull/2663)
 
+* Remove @ mark to fix invalid link in Rules.md.  
+  [Hiroki Nagasawa](https://github.com/pixyzehn)
+  [#2669](https://github.com/realm/SwiftLint/pull/2669)
+
 #### Bug Fixes
 
 * `colon` rule now catches violations when declaring generic types with
diff --git a/Rules.md b/Rules.md
index c630e787cc..89ec9b14df 100644
--- a/Rules.md
+++ b/Rules.md
@@ -116,7 +116,7 @@
 * [Quick Discouraged Pending Test](#quick-discouraged-pending-test)
 * [Redundant Discardable Let](#redundant-discardable-let)
 * [Redundant Nil Coalescing](#redundant-nil-coalescing)
-* [Redundant @objc Attribute](#redundant-@objc-attribute)
+* [Redundant @objc Attribute](#redundant-objc-attribute)
 * [Redundant Optional Initialization](#redundant-optional-initialization)
 * [Redundant Set Access Control Rule](#redundant-set-access-control-rule)
 * [Redundant String Enum Value](#redundant-string-enum-value)
diff --git a/Source/SwiftLintFramework/Models/RuleList+Documentation.swift b/Source/SwiftLintFramework/Models/RuleList+Documentation.swift
index 19d1b509a1..df6d0c71ab 100644
--- a/Source/SwiftLintFramework/Models/RuleList+Documentation.swift
+++ b/Source/SwiftLintFramework/Models/RuleList+Documentation.swift
@@ -88,7 +88,15 @@ extension RuleList {
     }
 
     private func summaryItem(_ text: String) -> String {
-        let anchor = text.lowercased().components(separatedBy: .whitespaces).joined(separator: "-")
+        var allowed = CharacterSet()
+        allowed.formUnion(.letters)
+        allowed.formUnion(.decimalDigits)
+        allowed.formUnion(.whitespaces)
+        allowed.insert(charactersIn: "-")
+
+        let anchor = text.lowercased()
+            .components(separatedBy: allowed.inverted).joined()
+            .components(separatedBy: .whitespaces).joined(separator: "-")
         return "* [\(text)](#\(anchor))\n"
     }
 }