diff --git a/extra/crypto/passwd-md5/passwd-md5.factor b/extra/crypto/passwd-md5/passwd-md5.factor
index 90313cb979..a8706a7531 100644
--- a/extra/crypto/passwd-md5/passwd-md5.factor
+++ b/extra/crypto/passwd-md5/passwd-md5.factor
@@ -18,7 +18,7 @@ PRIVATE>
 
 :: passwd-md5 ( magic salt password -- bytes )
     password magic salt 3append
-    password salt password 3append md5 checksum-bytes
+    salt password dup surround md5 checksum-bytes
     password length
     [ 16 / ceiling swap <repetition> concat ] keep
     head-slice append