diff --git a/Packages/vChewing_Shared/Sources/Shared/Protocols/PrefMgrProtocol.swift b/Packages/vChewing_Shared/Sources/Shared/Protocols/PrefMgrProtocol.swift
index 718eb5ae..f198e9d8 100644
--- a/Packages/vChewing_Shared/Sources/Shared/Protocols/PrefMgrProtocol.swift
+++ b/Packages/vChewing_Shared/Sources/Shared/Protocols/PrefMgrProtocol.swift
@@ -55,6 +55,7 @@ public protocol PrefMgrProtocol {
   var autoCompositeWithLongestPossibleCassetteKey: Bool { get set }
   var shareAlphanumericalModeStatusAcrossClients: Bool { get set }
   var phraseEditorAutoReloadExternalModifications: Bool { get set }
+  var classicHaninKeyboardSymbolModeShortcutEnabled: Bool { get set }
   var cns11643Enabled: Bool { get set }
   var cassetteEnabled: Bool { get set }
   var symbolInputEnabled: Bool { get set }
diff --git a/Packages/vChewing_Shared/Sources/Shared/Shared.swift b/Packages/vChewing_Shared/Sources/Shared/Shared.swift
index edf35682..ada1b14e 100644
--- a/Packages/vChewing_Shared/Sources/Shared/Shared.swift
+++ b/Packages/vChewing_Shared/Sources/Shared/Shared.swift
@@ -69,6 +69,7 @@ public enum UserDef: String, CaseIterable {
   case kAutoCompositeWithLongestPossibleCassetteKey = "AutoCompositeWithLongestPossibleCassetteKey"
   case kShareAlphanumericalModeStatusAcrossClients = "ShareAlphanumericalModeStatusAcrossClients"
   case kPhraseEditorAutoReloadExternalModifications = "PhraseEditorAutoReloadExternalModifications"
+  case kClassicHaninKeyboardSymbolModeShortcutEnabled = "ClassicHaninKeyboardSymbolModeShortcutEnabled"
 
   case kUseIMKCandidateWindow = "UseIMKCandidateWindow"
   case kHandleDefaultCandidateFontsByLangIdentifier = "HandleDefaultCandidateFontsByLangIdentifier"
diff --git a/Source/Modules/PrefMgr_Core.swift b/Source/Modules/PrefMgr_Core.swift
index da0d6385..f3334541 100644
--- a/Source/Modules/PrefMgr_Core.swift
+++ b/Source/Modules/PrefMgr_Core.swift
@@ -171,6 +171,9 @@ public class PrefMgr: PrefMgrProtocol {
   @AppProperty(key: UserDef.kPhraseEditorAutoReloadExternalModifications.rawValue, defaultValue: true)
   public var phraseEditorAutoReloadExternalModifications: Bool
 
+  @AppProperty(key: UserDef.kClassicHaninKeyboardSymbolModeShortcutEnabled.rawValue, defaultValue: false)
+  public var classicHaninKeyboardSymbolModeShortcutEnabled: Bool
+
   // MARK: - Settings (Tier 2)
 
   @AppProperty(key: UserDef.kUseIMKCandidateWindow.rawValue, defaultValue: false)