diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9cb6ef4cc..8d7cf79b7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,11 @@ Change Log
 - Restore the “Keep on Top” state of windows from the last session.
 
 
+### Fixes
+
+- Fix an issue in CotEditor 4.5.3 that some menu command shortcuts could not be customized.
+
+
 
 4.5.3 (564)
 --------------------------
diff --git a/CotEditor/Sources/KeyBindingManager.swift b/CotEditor/Sources/KeyBindingManager.swift
index ad94be8a6..ed5f0272b 100644
--- a/CotEditor/Sources/KeyBindingManager.swift
+++ b/CotEditor/Sources/KeyBindingManager.swift
@@ -310,12 +310,13 @@ final class KeyBindingManager: SettingManaging {
         
         menu.items
             .filter(self.allowsModifying)
-            .filter(self.isModified)
             .forEach { menuItem in
                 if let submenu = menuItem.submenu {
                     return self.clearShortcuts(in: submenu)
                 }
                 
+                guard self.isModified(menuItem) else { return }
+                
                 menuItem.shortcut = nil
             }
     }
@@ -328,13 +329,15 @@ final class KeyBindingManager: SettingManaging {
         
         menu.items
             .filter(self.allowsModifying)
-            .filter(self.isModified)
             .forEach { menuItem in
                 if let submenu = menuItem.submenu {
                     return self.applyShortcuts(to: submenu)
                 }
                 
-                guard let action = menuItem.action else { return }
+                guard
+                    self.isModified(menuItem),
+                    let action = menuItem.action
+                else { return }
                 
                 menuItem.allowsAutomaticKeyEquivalentLocalization = false
                 menuItem.shortcut = self.shortcut(for: action, tag: menuItem.tag)