diff --git a/programs/mutant-5/swen90006/passbook/PassBook.java b/programs/mutant-5/swen90006/passbook/PassBook.java
index 0bfec1c0a4ff29e8a2354bc23504003d0545f3fe..1aea6a239dfab72529b6d9ec08458038033c28f3 100644
--- a/programs/mutant-5/swen90006/passbook/PassBook.java
+++ b/programs/mutant-5/swen90006/passbook/PassBook.java
@@ -84,7 +84,7 @@ public class PassBook
 	}
 	//check the passphrase strength
 	else {
-	    if (passphrase.length() < MINIMUM_PASSPHRASE_LENGTH) {
+	    if (passphrase.length() > MINIMUM_PASSPHRASE_LENGTH) {
 		throw new WeakPassphraseException(passphrase);
 	    }