diff --git a/Flow.Launcher.Infrastructure/PinyinAlphabet.cs b/Flow.Launcher.Infrastructure/PinyinAlphabet.cs
index cc4eccdc5..0f6d00014 100644
--- a/Flow.Launcher.Infrastructure/PinyinAlphabet.cs
+++ b/Flow.Launcher.Infrastructure/PinyinAlphabet.cs
@@ -25,10 +25,17 @@ namespace Flow.Launcher.Infrastructure
 
             _settings.PropertyChanged += (sender, e) =>
             {
-                if (e.PropertyName == nameof(Settings.UseDoublePinyin) ||
-                    e.PropertyName == nameof(Settings.DoublePinyinSchema))
+                switch (e.PropertyName)
                 {
-                    Reload();
+                    case nameof(Settings.ShouldUsePinyin):
+                        Reload();
+                        break;
+                    case nameof(Settings.UseDoublePinyin):
+                        Reload();
+                        break;
+                    case nameof(Settings.DoublePinyinSchema):
+                        Reload();
+                        break;
                 }
             };
         }
diff --git a/Flow.Launcher.Infrastructure/UserSettings/Settings.cs b/Flow.Launcher.Infrastructure/UserSettings/Settings.cs
index 6b10d693d..726a0023b 100644
--- a/Flow.Launcher.Infrastructure/UserSettings/Settings.cs
+++ b/Flow.Launcher.Infrastructure/UserSettings/Settings.cs
@@ -328,7 +328,19 @@ namespace Flow.Launcher.Infrastructure.UserSettings
         /// <summary>
         /// when false Alphabet static service will always return empty results
         /// </summary>
-        public bool ShouldUsePinyin { get; set; } = false;
+        private bool _useAlphabet = true;
+        public bool ShouldUsePinyin
+        {
+            get => _useAlphabet;
+            set
+            {
+                if (_useAlphabet != value)
+                {
+                    _useAlphabet = value;
+                    OnPropertyChanged();
+                }
+            }
+        }
 
         private bool _useDoublePinyin = false;
         public bool UseDoublePinyin