diff --git a/WGestures.App/Gui/Windows/SettingsFormController.cs b/WGestures.App/Gui/Windows/SettingsFormController.cs
index 8cacd9e..f9ff2f0 100755
--- a/WGestures.App/Gui/Windows/SettingsFormController.cs
+++ b/WGestures.App/Gui/Windows/SettingsFormController.cs
@@ -115,7 +115,7 @@ public GlobalHotKeyManager.HotKey? PauseResumeHotkey
                     _hotkeyMgr.UnRegisterHotKey(ConfigKeys.PauseResumeHotKey);
                 }
 
-                _config.Set(ConfigKeys.PauseResumeHotKey, value == null ?  null : value.Value.ToBytes());
+                _config.Set(ConfigKeys.PauseResumeHotKey, value == null ?  new byte[0] : value.Value.ToBytes());
 
                 OnPropertyChanged("PauseResumeHotKey");
             }