diff --git a/Bloxstrap/Integrations/ActivityWatcher.cs b/Bloxstrap/Integrations/ActivityWatcher.cs
index 705ad7b..73b3b80 100644
--- a/Bloxstrap/Integrations/ActivityWatcher.cs
+++ b/Bloxstrap/Integrations/ActivityWatcher.cs
@@ -222,7 +222,12 @@
                         return;                
                     }
 
-                    UInt64.TryParse(match.Groups[1].Value, out ulong result);
+                    if (!UInt64.TryParse(match.Groups[1].Value, out ulong result))
+                    {
+                        App.Logger.WriteLine(LOG_IDENT, "Failed to parse userid from game join load time entry");
+                        App.Logger.WriteLine(LOG_IDENT, match.Groups[1].Value);
+                        return;
+                    }
 
                     Data.UserId = result;
                     App.Logger.WriteLine(LOG_IDENT, $"Got userid as {Data.UserId}");