diff --git a/WordsLive/Utils/WpfSingleInstance.cs b/WordsLive/Utils/WpfSingleInstance.cs
index 2e5806c..2c66348 100644
--- a/WordsLive/Utils/WpfSingleInstance.cs
+++ b/WordsLive/Utils/WpfSingleInstance.cs
@@ -26,11 +26,7 @@ internal static void Make(string appName, bool uniquePerUser = true)
             bool isSecondaryInstance = true;
 
             EventWaitHandle eventWaitHandle = null;
-            try
-            {
-                eventWaitHandle = EventWaitHandle.OpenExisting(eventName);
-            }
-            catch
+            if (!EventWaitHandle.TryOpenExisting(eventName, out eventWaitHandle))
             {
                 // This code only runs on the first instance.
                 isSecondaryInstance = false;