diff --git a/mutants/mutant-3/swen90006/machine/Machine.java b/mutants/mutant-3/swen90006/machine/Machine.java
index 9bf57316d1c736ea2bd1c62bd6df3c6c0282f331..e40898f27421ac66588b7aba71334b581e6d0f3d 100644
--- a/mutants/mutant-3/swen90006/machine/Machine.java
+++ b/mutants/mutant-3/swen90006/machine/Machine.java
@@ -170,7 +170,7 @@ public class Machine
     int pc = 0;
     final int progLength = instructions.size();
     while(true){
-      if (pc < 0 || pc >= progLength){
+      if (pc < 0 && pc >= progLength){
 	/* will cause NoReturnValueException to be thrown
 	 * but that is not a bug and and indeed is what the
 	 * VM is supposed to do if the pc becomes negative,