diff --git a/mutants/mutant-5/swen90006/machine/Machine.java b/mutants/mutant-5/swen90006/machine/Machine.java
index 9bf57316d1c736ea2bd1c62bd6df3c6c0282f331..f0b5d3f401b60097cc2e1fc41a791be43f76bd46 100644
--- a/mutants/mutant-5/swen90006/machine/Machine.java
+++ b/mutants/mutant-5/swen90006/machine/Machine.java
@@ -1,4 +1,4 @@
-package swen90006.machine;
+package swen90006.machine;
 
 import java.util.Arrays;
 import java.util.List;
@@ -148,7 +148,8 @@ public class Machine
   private void validate_offset(int offset)
     throws InvalidInstructionException
   {
-    if (offset < -MAX_ADDR || offset > MAX_ADDR) {
+  /* mutation offset==655*/
+    if (offset < -MAX_ADDR || offset > MAX_ADDR||offset==655) {
       throw new InvalidInstructionException();
     }
   }