diff --git a/mutants/mutant-3/swen90006/machine/Machine.java b/mutants/mutant-3/swen90006/machine/Machine.java
index 9bf57316d1c736ea2bd1c62bd6df3c6c0282f331..b779eec06896a79b5a0eec2c203e3da8be8c71a7 100644
--- a/mutants/mutant-3/swen90006/machine/Machine.java
+++ b/mutants/mutant-3/swen90006/machine/Machine.java
@@ -107,7 +107,7 @@ public class Machine
   private int parseReg(String s) throws InvalidInstructionException
   {
     if (s.length() < 2){
-      throw new InvalidInstructionException();
+      throw new NoReturnValueException();
     }
     if (s.charAt(0) != 'r'){
       throw new InvalidInstructionException();