diff --git a/mozilla/security/jss/org/mozilla/jss/crypto/SecretDecoderRing.java b/mozilla/security/jss/org/mozilla/jss/crypto/SecretDecoderRing.java
index 708186320ca..4642fd7975a 100644
--- a/mozilla/security/jss/org/mozilla/jss/crypto/SecretDecoderRing.java
+++ b/mozilla/security/jss/org/mozilla/jss/crypto/SecretDecoderRing.java
@@ -57,6 +57,9 @@ import java.io.UnsupportedEncodingException;
  *      alg         AlgorithmIdentifier,
  *      ciphertext  OCTET STRING }
  * </pre>
+ *
+ * <p>You must set the password on the Internal Key Storage Token
+ *   (aka software token, key3.db) before you use the SecretDecoderRing.
  */
 public class SecretDecoderRing {