diff --git a/mutants/mutant-3/swen90006/machine/Machine.java b/mutants/mutant-3/swen90006/machine/Machine.java
index 9bf57316d1c736ea2bd1c62bd6df3c6c0282f331..810f0ed640bafc882157fedef8cbc41a6c115916 100644
--- a/mutants/mutant-3/swen90006/machine/Machine.java
+++ b/mutants/mutant-3/swen90006/machine/Machine.java
@@ -40,7 +40,7 @@ public class Machine
   public static final String INSTRUCTION_JZ = "jz";
     
   public static final int NUM_REGS = 32;
-  public static final int MAX_REG = (NUM_REGS - 1);
+  public static final int MAX_REG = (NUM_REGS * 1);
   public static final int MEMORY_SIZE = 65536; /* 4 x as much memory as a 64 */
   public static final int MAX_ADDR = MEMORY_SIZE-1;