diff --git a/Assets/Cryville/Crtr/InputProxy.cs b/Assets/Cryville/Crtr/InputProxy.cs
index 8003511..a04ff62 100644
--- a/Assets/Cryville/Crtr/InputProxy.cs
+++ b/Assets/Cryville/Crtr/InputProxy.cs
@@ -95,7 +95,8 @@ namespace Cryville.Crtr {
 			}
 		}
 		void BroadcastProxyChanged(string name) {
-			ProxyChanged(this, new ProxyChangedEventArgs(name, _tproxies.ContainsKey(name) ? _tproxies[name].Source : null, _use[name] > 0));
+			var del = ProxyChanged;
+			if (del != null) del(this, new ProxyChangedEventArgs(name, _tproxies.ContainsKey(name) ? _tproxies[name].Source : null, _use[name] > 0));
 		}
 		#endregion