diff --git a/Compiler/Compiler.cs b/Compiler/Compiler.cs
index 6d08af3..15a463d 100644
--- a/Compiler/Compiler.cs
+++ b/Compiler/Compiler.cs
@@ -855,6 +855,7 @@ private void ParseModule(Module module)
 
                                     case "onWitness":
                                     case "onSeries":
+                                    case "onKill":
                                     case "onUpgrade": // address
                                         CheckParameters(name, parameters, new[] { VarKind.Address });
                                         break;