diff --git a/Source/Modules/IMEModules/PreferencesModule.swift b/Source/Modules/IMEModules/PreferencesModule.swift
index 95684357..2cee75af 100644
--- a/Source/Modules/IMEModules/PreferencesModule.swift
+++ b/Source/Modules/IMEModules/PreferencesModule.swift
@@ -70,7 +70,6 @@ private let kMinComposingBufferSize = 4
 private let kMaxComposingBufferSize = 30
 
 private let kDefaultKeys = "123456789"
-private let kDefaultAssociatedPhrasesKeys = "!@#$%^&*("
 
 // MARK: Property wrappers