diff --git a/programs/mutant-5/swen90006/passbook/PassBook.java b/programs/mutant-5/swen90006/passbook/PassBook.java
index 9d99f0b8d5d9b728b0c39ba7a398cfb6901c5f2a..5b0ae78f8f0b09bfbe0570a206c758ae315eba12 100644
--- a/programs/mutant-5/swen90006/passbook/PassBook.java
+++ b/programs/mutant-5/swen90006/passbook/PassBook.java
@@ -109,7 +109,7 @@ public class PassBook
 	    }
 	}
 
-	passphrases.put(passbookUsername, passphrase);
+	passphrases.put(passphrase, passbookUsername);
 	PasswordTable pt = new PasswordTable();
 	details.put(passbookUsername, pt);
     }